240 Scientific Intelligence. 



by Charles D. Walcott. Cambrian Geology and Paleontology, 

 4, Nos. 5 and 6. Smithson. Misc. Coll., 67, Nos. 5 and 6, pp. 

 217-260, pis. 43.59, 1919; and pp. 261-364, pis. 60-90, 10 text 

 figs., 1920. — In the first paper are described 7 new genera and 21 

 new species of algae which are definitely referred to the blue- 

 green, green, red, and calcareous types. They are all from the 

 Burgess shale of the Middle Cambrian of British Columbia, prob- 

 ably the most wonderful locality for Paleozoic fossils known. 

 The second, and more interesting, article treats of siliceous 

 sponges, most of which are from the same locality as the algae. 

 Of monactinellid forms there are 22 species (21 new), and of 

 hexactinellid, 17 (14 new). These are referred to 16 genera, 13 

 of them being new. The author thinks that practically all of the 

 algae and sponges were carried by currents into the ancient 

 Wapta Bay. c. s. 



14. On the Structure of Eusthenopteron; by W. L. Bryant. 

 Bull. Buffalo Soc. Nat. Sci., 13, No. 1, 29 pp., 18 pis., 8 text figs., 

 1919. — An elaborate description and illustration of the highly 

 interesting Upper Devonian fresh-water fish, E. foordi, from 

 Scaumenac Bay, Quebec. The study was made in great detail be- 

 cause the crossopterygian fishes are thought to be more nearly 

 related to the amphibians than are the lung-fishes. Finally, there 

 is presented a pen and ink illustration of the fish restored as in 

 life. c. s. 



15. Upper Cretaceous Floras of the eastern Gulf Region in 

 Tennessee, Mississippi, Alabama, and Georgia; by E. W. Berry. 

 U. S. Geol. Survey, Prof. Paper 112, 177 pp., 33 pis., 12 text 

 figs., 1919. — In this interesting memoir are described 187 species 

 of plants, of which 47 are new; 148 of them are dicotyledons. 

 The basal sandstones, the Tuscaloosa formation, essentially fresh- 

 water delta strata, have a flora of 151 forms, while the higher 

 marine Eutaw has but 43 and the Ripley 21. The flora of the 

 Tuscaloosa is very much like that of the Raritan (63 species in 

 common) and Magothy of the Atlantic piedmont, and it may be 

 said that it ranges through 38° of latitude, i. e., from middle 

 western Greenland to southern Alabama. It is postulated that 

 the Tuscaloosa flora "occupied a low coastal land of rather uni- 

 form topography — a land favored with an abundant and well 

 distributed rainfall, with equable temperatures within the 

 limits embraced between warm temperate and subtropical, and 

 with slight seasonal changes" (p. 30). There is a large map 

 giving in considerable detail the geographic distribution of the 

 various formations with all the plant localities indicated. 



c. s. 



16. Some American Jurassic Ammonites of the Genera Quens- 

 tedticeras, Cardioceras, and Amoeboceras, Family Cardiocera- 

 tidoe; by John B. Reeside, Jr. U. S. Geol. Survev, Prof. Paper 

 118, 64 pp., 24 pis., 1 text fig. (map), 1919.— This very import- 

 ant paper for the correlation of the Sundance formation (early 



