. Z..I • MINERAL INFORMATION SERVICE A PUBLICATION CALIFORNIAO F THE DIVISION MINESOF AND GEOLOGY NEWS NOTES U. S. LAKES TO BE STUDIED, page 200 REVIEWS, pages 196, 212 GROUND-COATING TECHNIQUE, page 201 ATOMIC SILVER DETECTOR, page 201 NEW PUBLICATIONS OF THE DIVISION OF MINES AND GEOLOGY LEGAL GUIDE, page 214MAP SHEET 4, page 213 A PAGE FROM HISTORY MARY AUSTIN, page 202THE LAND OF LITTLE RAIN, page 203 DIVISION OF MINES AND GEOLOGYDEPARTMENT OF CONSERVATIONTHE RESOURCES AGENCYSTATE OF CALIFORNIA VOLUME 18 NUMBER 11 NOVEMBER 1965 - /7 ?. 0 5" O INDEPENDENCE, USSM • CALIFORNIA i DESERT PAVEMENT, page 197 A LETTER TO THE EDITOR, Pa9e 196 November 1965 196 A LETTER TO THE EDITOR Dear Madam: O*0O«l -tai Yours, Ross H. Porter J iu owning o« holding i ntctNi o« “Ou or toiaa amouni 12,000 12,000 3,350 15,350 4,750 20,000 an w,M NO CONU nwno ,x„ 1 »’•«'«•»co-.... C ior*c CKuuno, o rut Mnua. ,„x, 1 rorw MnwMH tf„ — » 0.0 UM. uno,,. L/CCLO «tu Reading the August Mineral Information Service reminds me of one of my pet ideas: that all licensed surveyors should be required by law to file maps of lands or plots surveyed professionally. Such action would create a record of widespread surveys that would on occasion come in handy for ref erence by state or geodetic surveyors in addition to creating a basis for other surveys in the same area. I had a section surveyed in the desert in 1950 and had it recorded.lt was the first recorded survey of the spot since about 1835- Since 1950 probably two dozen surveys have been run in and around the area, and my record was undoubtedly used as a base. I feel that by having the record made I helped a lot of people, and it cost me only a couple of dollars. The ONLY recorded survey since 1950 has just been completed by the county. Would it not be to the advantage of all surveyors of all classes if all surveys were recorded? The self ishness of private surveyors in keeping their records to themselves appears to me to be unjustified. STATEMENT OF OWNERSHIP, MANAGEMENT AND CIRCULATION t All if O.nbrr 2\. 1963: Sttliti Il(i9. Tutt .19. UmlrJ Sljln CtJ<> i B.H o» UK 11 rni o» SEPTEMBER 15, IM5 |________MINERAL INFORMATION SERVICE_____________ i rnovix, o uivt ~ MONTHLY________________________________________ ___________________________ I .«*>«•< O» INCWN O«<1 O’ I Imil. ,u, u.n. i.f iiJll SAME______________________________________ ____ _________________ »■ *np AOOMtMS o> mlimi, icnot, «kq managing icito« CALIFORNIA DEPARTMENT OF CONSERVATION. DIVISION OF MINES AND GEOLOGY (OrtCM /A.-/ “W ' ' — -------------------------------------------- -------- GEOLOGY. FERRY QIIII.OIHG. SAN FRANCISCO. 94111_______ 7. OWNU (if ntttJ by « Hi »■< . if UHbbtUtn ,r btlJi*t I f own esteem by convinc- he had proudly believed, the land and going back to it. For one thing there is the divinest cleanest air to be breathed anywhere in God’s world. Some day the world will understand that, and the little oases on the windy tops of hills will harbor for healing its ailing, house-weary broods. There is promise there of great wealth in ores and earths, which is no wealth by reason of being so far removed from water and workable conditions, but men are bewitched by it and tempted to try the impossible. You should hear Salty Williams tell how he used to drive eighteen- and twenty-mule teams from the borax marsh to Mojave, ninety miles, with the trail wagon full of water barrels. Hot days the mules would go so mad for drink that the clank of the water bucket set them into an uproar of hideous, maimed noises, and a tangle of harness chains, while Salty would sit on the high seat with the sun glare heavy in his eyes, dealing out curses of pacification in a level, uninter ested voice until the clamor fell off from sheer exhaus tion. 1 here was a line of shallow graves along that road; they used to count on dropping a man or two of every new gang of coolies brought out in the hot season. But when he lost his swamper, smitten without warning at the noon halt, Salty quit his job; he said it was “too durn hot.” The swamper he buried by the way with stones upon him to keep the coyotes from digging him up, and seven years later 1 read the pen ciled lines on the pine headboard, still bright and tin weathered. But before that, driving up on the Mojave stage, 1 met Salty again crossing Indian Wells, his face from the high seat, tanned and ruddy as a harvest moon, looming through the golden dust above his eighteen mules. The land had called him. The palpable sense of mystery in the desert air breeds fables, chiefly of lost treasure. Somewhere within its stark borders, if one believes report, is a hill strewn with nuggets; one seamed with virgin silver; an old clayey water-bed where Indians scooped up earth to make cooking pots and shaped them reeking with rains of pure gold. Old miners drifting about the desert edges, weathered into the semblance of the tawney hills, will tell you tales like these convincingly. After a little sojourn in that land you will believe them on their own account. It is a question whether it is not better to be bitten by the little horned snake of the desert that goes sidewise and strikes without coiling, than by the tradition of a lost mine. And yet-and yet-is it not perhaps to satisfy expec tation that one falls into the tragic key in writing of desertness? The more you wish of it the more you get, and in the meantime lose much of pleasantness. In that country which begins at the foot of rhe east slope of the Sierra and spreads out bv less and less lofty hill ranges toward the Great Basin, it is possible to live with great zest, to have red blood and delicate joys, to pass and iepass about one's dailv performance an aica that would make an Atlantic seaboard state, and that with no peril, anti, according to our way of thought, no particular difficulty. At anv rate, it was not people who went into the desert mcrclv to write it up who invented the fabled Hassayampa, of whose waters, if any drink, they can no more see fact as naked fact, but all radiant with the color of romance. I. who must have drunk of it in my twice seven years’ w anderings, am assured that it is worth while. part of her time, day and night, she spent out-of-doors, inquiring, observing, and recording for future use the habits of the night-prowling animals, the flux of seasons, the kinds of growing things, the movements of sheep and cattle, the stories of herders, Indians, pioneers—anything and everything that crossed her path. Mostly her mind was filled with questions; and for help in finding the answers, she turned to General Edward F. Beale, owner of Tejon Rancho, who was thoroughly familiar with tire land and the sources of information about it, and glad to pass on his knowl edge to the quick and intelligent girl. Mary had time on her hands, for she was not "popular” with the "crowd”; in fact, they omitted to include her in their affairs when they could do so. And, though this was a blow to the pride of a young miss, it was not so shattering a thing as to hear her mother say, in terrible grief over the loss within a few months of both husband and younger daughter, "Why couldn’t it have been Mary?” Mary found herself quite able to cope with unpopularity’, and this, in turn, kept her even more alone. By the summer of 1889 it was obvious to the Hunters that they would not be able to make the homestead pay. General Beale, as always sympathetic to the tinued from page 202 she said, had a croquet box full, continually being dragged collectors to gloat over i— Her most trilobite which she had acquired from a after having reduced it in his ing him that it was not, as 1 a petrified owl- Mary Hunter’s interest in the natural sciences lasted throughout her life. In 1888, when her family- then reduced to her mother and two brothers-moved to California and established themselves on a home stead at the far south edge of the San Joaquin Valley, she found country that stirred her strangely. A arge For all the toll the desert takes of a man it gives compensations, deep breaths, deep sleep, and the munion of the stars. It conies upon one with new force in the pauses of the night that the Chaldeans were a desert-bred people. It is hard to escape the sense of mastery as the stars move in the wide clear heavens to risings and settings unobscured. They look- large and near and palpitant; as if they moved on some stately service not needful to declare. Wheeling to their stations in the sky, they make the poor world fret of no account. Of no account you who lie out there watching, nor the lean coyote that stands off in the scrub from vou and howls and howls. November 1965 208 209 Rose Station, Kern County. Photo courtesy Tejon Ranch Co. mitigated - — Mineral Information Service across the Red Rock Canyon, Kern County. Mrs. Austin writes, of one of her stage trips through it: “I recall once setting out for Mojave at such an hour that midnight brought us to Red Rock Canyon, one of the weirdest wind-sculptured defiles of the West, with nobody on board but three or four nondescript male passengers and Mary on the boot beside the driver. Where we the women at their native tasks; learning how to make snares, to weave baskets, and to find the seeds used for food and the plants used for medicine. She challenged an eagle for a lake trout brought down by a flash flood in George’s Creek, and almost had her baby snatched instead; but she fought off the immense bird with a hoe, and escaped with one long, raking scratch from his claws. She renewed her acquaintance with the flocks and herders she had known on the Tejon, and to the latter she brought garden greens and fresh garlic, which she traded for lumps of fresh mut ton, and for news of the trail. The next winter Mr. Austin taught school at Lone dark of the stage lantern; we followed the stranger around a coiqn of the canyon wall. There was a camp there and a low tire; a wagon bulked darkly and beside the fire the hurt man propped on a bedding roll under a blanket. ‘Here’s a lady come to pray with you, Bill.* Bill was evidently far gone. He tried to speak; tried to push back the blanket, which showed him bandaged about the breast. Another man came up from the wagon, carry ing one of hi s arms awkwardly, muttering something. The guide put the blanket firmly back. ‘Don’t keep the lady waiting, Bill.’ Mary caught the wander ing feeble hand s of the hurt man in hers...‘Merciful Father...’ she began; behind her she could see, or rather hear the men taking off their hats. There had been, Mary considered, some sort of a shooting scrap...no time to think of that... ‘Repeat after me: Christ Jesus, forgive my sins...Jesus... forgive,’ very faint; ‘and receive my spirit...’ When we got down at Keeler the next afternoon, the two men who had stood behind Mary when she prayed came up solemnly and shook her by the hand. Later the driver told me that on his daylight trip back he had stopped long enough to visit the death camp, but besides the cold ashes he found no trace.” [From Earth Horizon, by Mary Austin, Houghton Mifflin and Company, 1932, by permission of the publisher.] The road through Red Rock Canyon is now multi-lane Highway 6, running southwest from Highway 395 to Mojave. Photo by Mary Hill problems of homesteaders, offered to let them work Rose Station, the old stage stop just below the Pass, on his Tejon Ranch. Mary spent but little time there, for she was almost immediately engaged to teach at Mountain View dairy ranch. Here Mary Hunter came into her own. She was an excellent teacher, able not only to stimulate the interest and natural inquisitiveness of her students, but also to win their affection, even their devotion. Here, too, she met Stafford Wallace Austin and became engaged to him. They were married May 18, 1891, at her mother’s home, which was then in Bakersfield. Stafford Austin’s goal, at the time he married Mary, was to become a vineyardist; it took him a little less than a year to lose that hope. Next, he and his brother Frank set up an irrigation project for the Owens Valley, which Stafford was to manage from Lone Pine; and, after a short interlude in San Francisco (during which Mary sold her first two short stories) husband and wife took up residence at the Lone Pine hotel. Mary—now expecting a baby—found Lone Pine a congenial place: this in spite of the fact that within a few weeks the irrigation project followed the attempt at viticulture to oblivion. The Austins, being penniless, and not considered a very good risk, were barred from their hotel room. Mary, in sudden desperation, sought work as cook in a local boarding house patronized largely by miners recovering from lead poisoning (one of the hazards of the profession in that area), where she came to know them well. Though they were gentle and courteous to her, she said, she found them "less rewarding than other sorts of Westerners”, be cause they were thoroughly preoccupied with four subjects: killings, hold-ups, rich strikes, and lost mines! When the time for her child’s birth drew* near, Maty returned again to her mother’s home: by stage south through Red Rock Canyon to Mojave, thence by the Los Angeles train north to Bakersfield. Because of her "condition” she was allowed to ride outside with the stage driver rather than in the stuffy coach—a position she found so advantageous for viewing the passing landscape and drawing out the driver’s stock of local information, that on later journeys she wangled the same spot. In time, she was even allowed to take the reins. Fortunate it was, too; for a day came when the driver turned sick, and Mary of necessity took his place, leaving her baby to the care of a couple of men inside the coach. Little Rudi arrived October 30, 1892, taking forty eight hours to make up her mind that she really wanted to enter the world. Mary was ill for months thereafter; but a worse blow came to her just a few days after the birth of the child: everything relating to her mar riage—and apparently a number of diings before it— Mr. Austin had arranged on credit. Since the failure of his projects, he had been most of the time un employed and therefore unable to pay; now she was besieged by his creditors. He, isolated at a mountain camp in Inyo, sent her word to take care of things as she saw fit, expecting, he later told her, that she would declare him bankrupt. But Mrs. Austin was made of tougher stuff: she settled with those people she could after selling the house and "vineyard”; the rest they made a few friends. The doctor from Independence stopped by frequently, out of the kindness of his heart and a yearning for a bit of intellectual stimula tion; and an Indian mahala, who, pitying the scrawny infant and distracted young mother, nursed the child at her own breast. Ruth flourished, growing into a strong, beautiful, golden-haired baby; two or three years later, because she was not talking as early as she should, the mahala journeyed all the way to Lone Pine to bring her meadow-larks’ tongues, that her speech might be quick and nimble. During this period Mary became well acquainted with the Indians, going out occasionally to work with dark stranger peered and hesitated. ‘You’re a lady, “ % * c nroitq bad ’ ‘I got the mail,’ the driver explained; ‘I could wait fifteen III ■ ■ I W I W . Mary began to clamber down in the dark.. ‘Here you,’the driver called indignantly into,the interior, ‘ain’t some o’ you fellows goin’ with the lady? Grunting, two male figures took form in the _ ____ here’s pretty badly hurt,’ apologized the interlocutor; ‘he’d like to have somebody pray for him.’ After another dead interval, Mary leaned driver’s knee. ‘I could pray,’ she said. The dark stranger peered and hesitated. ‘You’re ain’t ye? The man’s pretty ‘I got the ma?!,’ the driv minutes.* she arranged to pay in installments. For several years thereafter she struggled to put their lives in order; but matters went from bad to worse. For awhile they settled at George’s Creek, north of Lone Pine, where Mr. Austin taught school. The baby was sickly, and Mary herself ailing—but mysteriously up on our warily on his hip and the his quest... ‘Ye got anybody on board that can pray out I The driver halted, gun-hand squared to the stranger1 direction. Nothing came of heavy breathing. ‘We got a man I Red Rock Canyon, out for Mojave at such 1 Canyon, one of th< West, with nobody passengers and Mary slowed down by the drag of the wind- sifted sand in the dark of the canyon, a figure moved right...the driver laid his hand stranger hastened to make known board that can pray out loud?’ out of the interior but the sound November 1965210 27 7 reputation. People sought her out—geolo on Bishop. Photo by Mary Hill -—r of Inyo, and, wish to return there. Mineral Information Service ® Al ary Austin came no more to the Land of Little Rain. Of her later life in Europe, New York, Santa Fe— her reputation for eccentricity, her fame as writer and lecturer, her championship of feminist causes, her deep interest in and sponsorship of Indian and Spanish- derived folk cultures, her reputation as prophetess and naturist, her mysticism, the personal serenity and sustaining religious belief she drew from the Land of Little Rain—no more need be said here. She lived 66 full years, years of meeting life head-on, years during which resignation was "never a character written in her book", before her death on August 13, 1934> at her "Beloved House", Casa Querida, in Santa Fe, New Mexico. The land of little rain, near Mary Austin, 1932. Photo reproduced through the courtesy of Bancroft Library. Pine, where conditions were somewhat improved; at least the house was better, and his salary a bit larger. She was drawn once more into the company of miners and mining people, the tag ends of the Comstock rush, those ’’relicts of die great mining days, whose trails went up like smoke even as Mary watched them”. She crossed the town's social borders, making friends widi its Spanish-speaking population, learning from them the art of Mexican cooking and the sound of their soft-flowing language. So her days went...until Mr. Austin took up a home stead in die Alabama Hills. Though she found great beauty in that spot, Mary was not there long, for the life was more taxing than her health could stand, and the strain was a hundredfold increased by her growing suspicion that Ruth was mentally afflicted. Short of money as always, she took Ruth and went to Bishop, to teach English in die z\cademy there. For the time, Mr. Austin stayed behind. California Historical Landmark 229, ’’the brown house yn°er the willow tree”, home of Mary and Wallace Austin in Independence. Mrs. Dorothy Cragen, Director of the Eastern California Museum, Inc., who kindly furnished this photo from the Museum’s files, writes, ’’The house is going to be up for sale soon. It has been in private hands....We would like to have it preserved and open to the public sometime. Our Recreation Director is working on it for the Board of Supervisors...trying to get the Division of Beaches and Parks interested in it.” Those of our history-minded readers who have seen s°mples —such as the Chinese Joss House at Weaverville, the Vallejo Home at Sonoma, or the gold-discovery site at Coloma—of the superlative work of restoration and preserva tion done by our sister agency, the Division of Beaches and Parks, will realize the future worth of Inyo’s project. Any word of encouragement you may give Mrs. Cragen will no doubt be greatly appreciated. She can be reached at the Inyo County Courthouse, Independence, California. It is said that Mary lived in Bishop in abject poverty, leaving the child alone in the hotel when she had to; but saving, saving, saving against the day when she might be able to afford an operation that by chance might make the girl well. As it turned out, the hope was in vain, for Ruth Austin died in her twenties in an institution. Kindly neighbors attempted to care for the child, but the distraught mother, far from thanking them, scarcely noticed that they were there. Finally, in desperation, she placed Ruth with a nearby farm family, and devoted all her attention after school to her writing. This the townspeople took to be child desertion, and part of the adverse legend of Mary Austin took shape. In 1897 Mr- and Mrs. Austin accepted work as teachers—he as Superintendent—in the Lone Pine school; but once more her health gave out, and she went to Los Angeles. Soon afterward Mr. Austin quit his job and moved to Independence to become Registrar of the Desert Land Office. Mary, not having been con sulted, was incensed; but when she could she went to him there. Even for Independence, Mary’s particular brand of independence was too much. She managed to get her self read out of the Methodist Church there for teaching Higher Criticism to an adult Bible class, and she sadly strained the social proprieties when a chocolate cake she made turned up in the center of a mass of fire crackers and punk sticks at the local Chinese New Year celebration. Nor could many of the towns people condone her taking part in Indian dances, or -starting a community theater. avail. Wallace Austin eventually moved - ” ” r Austin resumed her writing-for time-in Carmel. Ill and depressed, she foresaw nothing but desolation for the country' loving it as she did, had no — r to build a reputation. People sought her out-geolo gists, collectors of Indian artifacts, botanists,explorers, Sierra Club members-because of her knowledge of the land. She was acknowledged an expert on Indian affairs; and no less personage than Theodore Roosevelt, President of the United States, sought her opinion forest lands and grazing. In the early 1900s Mary, planning her book Isidro, took the opportunity to travel to Monterey and do research for it at the Mission of Carmel. There she made the acquaintance of many prominent writers, and with Jack London, George Sterling, and several others, formed the artists’ colony at Carmel. But her time in California was now coming to its end. In 1903 an investigation was started by the National Reclamation Bureau to reclaim arid lands in Owens Valley. Individual owners made transfers of rights and privileges, and land was purchased easily’ by' men who claimed to represent the Government. And then the rosy picture exploded. Word got round that the water was instead to be drained from the Valley to supply Los Angeles. Wallace and Mary Austin joined their protests to those of the Valley inhabitants— to no avail. Wallace Austin eventually moved on to Death Valley. Mary a t Another bout with illness sent her to Los Angeles for a year, where she had a chance to meet and talk with other writers for the first time in her career. She would undoubtedly have liked to stay, but Mr. Austin would not leave Inyo, so she returned there, feeling that another year of separation would probably end their marriage. She wrote. The Land of Little Rain (of which she said, ”1 was only a month writing...but I spent twelve years peeking and prying before I began it”) was published, and was an immediate success. She began November 1965 Mineral Information Service 213212 MAPPUBLISHERSFROM OTHER READY well as EASTE1J Ci'.’JFD.’imA museum INDEPENDENCE, CALIFORNIA redding quadrangle SHEET easier museum INDEPENDENCE. CALIFORNIA Principles of structural glaciology. The petrography of fresh-water ice as a method of glaciological investi gation. By P. A. Shumskii. Published by Dover Publi cations, Inc., New York. 1964. From die Russian by David Kraus. 497 pp. Price $3.00. Professor Shumskii defines glaciology as the study of all ice, not merely ice in glaciers. This book is a summary of work in the field of glaciology up to 1952, with additions, espe cially to the bibliography, to 1964. Alluvial fans in the Death Valley region, California and Nevada. By Charles S. Denny. U. S. Geological Survey Professional Paper 466. 1965. 62 pp. The author discusses the origin of desert pavement, as well as other geomorphic problems of the Death Valley area. Desert peaks guide, Part I. Edited by Walt Wheel ock. 1964. 40 pp. Published by La Siesta Press, Box 406, Glendale, California, 91209- A guide to the climbing, with bits about the geology, of rocks in the White, Inyo, Coso, and Argus Ranges, as what are listed as ‘’Mono Peaks”. Encyclopedia of buried treasure hunting. By Karl von Mueller. Published by Exanimo Press. 1965- 87 pp. Price $1.00. A collection of entries relating to prospecting and treasure hunting, alphabetically ar ranged. Included are such entries as “Pacific Pali sades Treasure”, “Lost Sheepherder Mine”, and “Mineral Information Service”, but not, oddly enough, “Captain Kidd”. A field guide to the gems and minerals of Mexico. By Paul Willard Johnson. Published by Gembooks, Men tone. California. 1965. 97 pp. Price $2.00. Baja California overland. By L. Burr Belden. Pub lished by La Siesta Press, P.O. Box 406, Glendale, California. 1965. 64 pp. Price $1.95- Illustrations of the lluttonian theory of the earth. By John Playfair. Published by Dover Publications, Inc.,New York. 1964. 528 pp. Price $2.75. A facsimile reprint of the edition of 1802, and a bargain for those interested in the history of science. Third progress report to the Legislature, 1965 Reg ular Session. Section I. By Senate Permanent Factfind ing Committee on Natural Resources. 1965. Chapter 3 of this section is entitled, “Geologic needs of Cali fornia”, and concerns the program of this Division. Natural gamma aeroradioactivity map of parts of the San Francisco region, California. By Kenneth G. Brooks. U. S. Geological Survey, Geophysical Investigations Map GP 483. 1965. Scale 1:250,000. Radiative heat exchange in the atmosphere. By K. Ya. Kondrat’yev. Published by Pergamon Press (new address: 44-01 21st St., Long Island City), New York. 1965. 411 pp. Inasmuch as this subject is of consider able interest to physical scientists, this comprehensive volume should be of use to anyone concerned with the earth’s physical conditions. This is the first English edition.lt has been revised and enlarged by the author from his original Russian volume, “Radiant energy of the sun”. Of particular value is his extensive bibli ography . Greenstone, through batholiths, stocks, and dikes of Jurassic or Cretaceous age, the Pliocene (?) Nomlaki luff and Pleistocene (?) Red Bluff Formation, to Re cent gravel, sand, silt, clay, and soil. The region is one of extensive mining, especially for gold, although copper, tungsten, and gravel have also been won. The locations of 34 lode gold mines, 21 placet mines, one tungsten and one copper mine, two sand and gravel and two stone quarries arc plotted on the map. The map was prepared by V. F. Hollister and J. R. Evans, and is published at a scale of 1:24000, or about 2J4 inches to the mile. It is sold in a manila envelope similar to those of other map sheets. Price is SI.50, plus tax for California residents. toward Shasta Bally and Trinity Alps. The use of surfactants in the petroleum industry. Edited by P. A. Rebindcr. Authorized translation from the Russian. Published by Consultants Bureau Enter prises, 227 W. 17th St., New York. 1965- 546 pp. Price §45- In the past ten years, the Soviet Union has been doing considerable research and experimentation in the use of surface-active substances to increase petro leum recovery. Three conferences on the use of sur factants have been held in the Soviet Union, under the sponsorship of the USSR Academy of Sciences. This translation covers the second conference, augmented by papers from the first that English readers may not know. Proceedings from the third conference are now being prepared for publication in Russian. The pub lisher’s staff has compiled a particularly useful table that forms a preface to the book. Entitled "Partial list of surfactants”, it tells the reader what the various surfactants referred to are. Not all of them are known: for example, one of the unknown substances , called "bunigal”, is not identified by chemical formula, and its identity is not known to the translator; another is called "Soviet Detergent”, and only a guess can be made as to its composition. Redding and vicinity View northwest Methods of determining Ef} and pH in sedimentary rocks. By Gennadii Anatol’evich Solomin. Authorized translation from the Russian. Published by Consult ants Bureau Enterprises, 227 W. 17th Street, New York. 1965. 56 pp. The autlior describes a method of deter mining the redox potential in sedimentary rocks. The redox potential (E^) is a measurement determined by subjecting a redox system to conditions that cause the system to gain or lose electrons. The procedure in volves the immersion of a noble metal electrode (gener ally platinum) in a solution containing a redox system. Redox systems are developed in those elements that are polyvalent: i.e., Fe-*-, Fe--, and the like. The author suggests a new method for determining the redox potential—relative to hydrogen as 0. Such new techniques can be of value in prospecting for ore deposits, as well as in understanding the principles involved in the alterations of rocks. Map Sheet 4, “Geologic map of the Redding quad rangle, Shasta County, California”, is now ready for distribution. Like the previous three maps in the .Map Sheet seiies, the Redding quadrangle map consists of a colored lithographed map and a text, printed to gether on one large sheet of paper. The area of the quadrangle is 71/, minutes of lati tude and longitude, extending from about the Sky Ranch Airport south of the city of Redding to the Keswick hydraulic pits north of Redding. East and west, rhe area covered is from approximately the Rodeo Grounds outside the city to about the Shasta State Historical Monument. Rocks in the area arc delineated in color. They range in age from Devonian, represented by the Coplev edition.lt RETURN REQUESTED MINERS LEGAL GUIDE IN PRINT AGAIN MINERAL INFORMATION SERVICE MAKES A FINE CHRISTMAS GIFT FORMORDER Please send .copies, Map Sheet 4 (Redding quadrangle) at $1.50 each. prospectors and miners at $1.00 each. ADDRESS ... NAME . ZIPSTATE CITY .. Please enter my subscription to Mineral Information Service at $1.00 per calendar year. NAME ADDRESS CITY . STATE ZIP AHOSZ. I DIVISION OF MINES AND GEOLOGY FERRY BUILDING SAN FRANCISCO, CALIF. 94111 STATE OF CALIFORNIA THE RESOURCES AGENCY DEPARTMENT OF CONSERVATION SECOND CLASS POSTAGE PAID AT SAN FRANCISCO, CALIFORNIA ZIP No tai is required tor subscriptiorrt. copies, Legal guide for California Address orders to the California Division of Mines and Geology, Ferry Building, San Francisco, California ZIP 94111. Checks and money orders should ’ be made payable to the Division. No postage is required; please do not send stamps in payment. California residents please add 4% sales tax. May we suggest . . . Thar you consider a subscription nplimcnt you can — •'-: — me the following: ' ’ i to Mine ml Information Service a compliment you can pay your friends and associates? It is inexpensive; if they are interested in natural history, landscape, mining, geology’, or history, they will find articles of interest in it. They will receive twelve issues, a continuing reminder of your courtesy and generosity. If you would like to give a gift subscription to someone, till in his name ami address below. We will send them Mineral Information Serv ice for the whole year (back copies included) and a letter telling them of your gift. Send $1.00 for each subscription. NAME ADDRESS CITY STATE Out-of-print for some months now, the Division’s useful and popular Legal guide for California pros pectors and miners is again available. This is the second printing of die 1962 edition; the only changes are corrections of a few typographical errors. Owners of the 1962 edition will not need to purchase a new one, as this is substantially the same. However, those many of our readers who have been waiting for a copy will be glad to know that it is now for sale at SI.00 per copy.

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