304: Scientific Intelligence. 



illustrations of the scenery and animals of the White River bad- 

 lands, and is written, according to the preface, ' ' in order that the 

 intellectually alert, the indifferent thinker, the old and the young, 

 irrespective of educational advantage or technical training, may 

 have opportunity to get a clearer and more comprehensive idea of 

 this wonderful part of nature's handiwork." c. s. 



2. Some Anticlines of Boutt County, Colorado; by R. D. 

 Crawford, K. M. Willson, and V. C. Perini. Colorado GeoL 

 Survey, Bull. 23, 61 pp., 10 figs., 1920.— In this little report is 

 brought together the evidence in regard to the anticlines in Routt 

 County — and there are a number of them — where oil seeps have 

 long been known. The work was done to facilitate the prospect- 

 ing of the petroleum geologists. c. s. 



3. Permian Salt Deposits of the South-central United Stares; 

 by N. H. Darton. U. S. Geol. Survey, Bull. 715-M, pp. 205-230, 

 pis. 21-24, text figs. 31-40, 1921.— This little publication is one of 

 the most striking of the many economic papers issued by the 

 IT. S. Geological Survey in recent years. It is now established 

 that the sodium chloride beds of central Kansas are a part of the 

 greatest salt accumulation of the world. These deposits cover an 

 area fully 650 by 150 miles, equalling 100,000 square miles, and 

 up to 700 feet in thickness, in the states of Kansas, western Okla- 

 homa and Texas, and eastern New Mexico. The total quantity of 

 sodium chloride is estimated by Darton at over 30,000 billion tons. 

 Much anhydrite and gypsum is associated, and the whole of this 

 series of salts lies in the lower part of the red beds of the Per- 

 mian. So far, potassium salts in commercial quantities are 

 unknown in this little explored and deeply buried formation, but 

 there is a possibility and even a probability that such will be 

 discovered. c. s. 



4. Interrelations of the Fossil Fuels; by John J. Stevenson. 

 Pp. 458, 1921. — Professor Emeritus Stevenson here brings 

 together in book form what he has published under the same title 

 in the Proceedings of the American Philosophical Society during 

 the years 1916-1918 and 1921. To this has been added a table of 

 contents and a good index. He treats of peats and coals, and 

 gives a geologic synopsis of the world's fossil fuels, the whole 

 testifying to a tremendous amount of labor devoted to bringing 

 together the data presented. "We congratulate our distinguished 

 colleague ! c. s. 



5. Foraminifera of the Philippine and Adjacent Seas; by 

 Joseph A. Cushman. U. S. Nat. Mus., Bull. 100, vol. 4, 608 pp., 

 100 pis., 52 text figs., 1921. — In this extensive work are described 

 and figured about 640 species or varieties (47 new) of Foramin- 

 ifera, distributed among 119 genera. They are the result of six 

 hundred dredgings in the Philippine region by the Fisheries 

 steamer "Albatross," from depths ranging down to 1,000 



