^60 Scientific Intelligence, 



3. Brachiopoda Triadica; by C. Diener. Fossilium Cata- 

 logus, 1: Animalia, Pars 10, pp. 109, Berlin (W. Junk), 1920.— 

 This catalogue cites the bibliography of all the known Triassic 

 brachiopods, which are divided as follows : Inarticulata, 3 

 genera, 26 species ; Strophomenacea, 2 genera, 10 species ; Spiri- 

 feracea, 12 genera, 260 species; Rhynchonellacea, 5 genera, 184 

 species; Terebratulacea, 8 genera, 146 species; total, 30 genera, 

 626 species. Five-sixths of the forms are restricted to the alpine- 

 mediterranean province; 19 occur in Germany, 77 in the Him- 

 alayan area, 14 are boreal, and only 4 andine. c. s. 



4. Cephalopoda DilDrancliiata; by E. v. BIjlow-Trummer. 

 Fossilium Catalogus, 1 : Animalia, Pars 11, pp. 313, Berlin (W. 

 Junk), 1920. — In this work is brought together all the literature 

 treating of the fossil dibranchiate cephalopods. It has taken the 

 author more than two years to prepare the manuscript, and all 

 paleontologists should be thankful that the work has been done 

 once for always. Thirteen genera are restricted to the Cenozoic, 

 and fifty-eight to the Mesozoic. c. s. 



5. Coal in Great Britain; by Walcott Gibson. Pp. viii, 311, 

 8 pis., 50 text fi'gs. London (Edward Arnold), 1920.— The 

 author, after thirty years' experience in the coal fields, presents 

 here a condensed but readable account of the geology of the coal of 

 the late Paleozoic formations, mainly for mining engineers, mine 

 owners, and mining students of Great Britain. The book should 

 be interesting, however, to mining, geologists in other countries. 

 The first eight chapters are introductory to the geology of coal, 

 and describe the nature, formation, origin, distribution, and some- 

 thing of the included fossils as zonal indices, together with chap- 

 ters on prospecting and boring and on the stratigraphy of the 

 exposed and concealed coal fields. The remaining fifteen chap- 

 ters treat of the widely distributed coal fields of England, Wales, 

 Scotland, and Ireland. 



' ^ The distribution of coal according to quantity has been esti- 

 mated for each continent, and is as follows in millions of tons: 

 Europe, 789,090; Asia, 1,279,586; Oceania, 170,408; Africa, 

 57,839 ; America, 5,111,528. According to the class of coal, the 

 world's estimated supply of anthracite coal is 496,846 ; of bitumi- 

 nous coal, 3,902,944; of sub-bituminous and brown coal, 7,397,553 

 millions of tons. In these estimates no allowance has been made 

 for coal not mineable or for loss in mining" (p. 32). c. s. 



6. A Monograph of the British Ordovician and Silurian BeU 

 lerophontacea, Part I ; by F. R. Cow^per Reed. Pal^ontographi- 

 cal Soc, pp. 1-48, pis. 1-8, 1920.— In this interesting but uncom- 

 pleted study of British Bellerophon-like gastropods are described 

 and illustrated the species of the following genera : Sinuites (syn. 

 Protoivarthia) , 15 forms (9 new) ; Bimiitopsis, 1 n. sp. ; Oxy dis- 

 cus, 5(2); Cijrtolites, 5(4); Isospira, 1 n. sp. ; Bucaiiiella, 

 2(1); Bucania, ^{S) ; Kokenospira, 10(7) ; Tetranota, ^{d) ; 

 Conradella, 4(3) ; Temnodisciis, 2 n. spp. 



