170 . Scientific Intelligence. 



forms, ' ' an extensive series, but it is but a beginning. ' ' Of new 

 genera there are 14. All of the species are small, seemingly indi- 

 cating that the climate was not tropical. It is also evident that 

 through a wider study of new material, more or less easily 

 obtained, the insects will permit paleontologists to divide the 

 Green Eiver series into a number of zones. c. s. 



3. Annotated list of the Recent Brachiopoda in the collection of 

 the United States National Museum, with descriptions of thirty- 

 three new forms; by W. H. Dall. Proc. U. S. Nat. Mus., 57, 261- 

 377, 1920. — Probably the largest and most valuable collection of 

 Recent brachiopods anywhere is in the United States National 

 Museum, where over 6,000 specimens are deposited, representing 

 181 different forms in 54 groups. In the present memoir, 33 new 

 forms are described, along with the new group terms Cnismato- 

 centrum. Pantellaria, Pereudesia, and Jolonica. The total num- 

 ber of living species is now about 215. 



We all know that Doctor Dall is a law-abiding biologist, and 

 we should, therefore, accept his decision when he shows that 

 according to the rules of nomenclature Gryphus of Megerle von 

 Miihlfeldt is not preoccupied by Brisson's earlier but erroneous 

 name ; hence Liothyris and Liothyrina are synonyms of Gryphus 

 1811. Again, the correct name for the well known brachiopod 

 Lingula anatina is L. unguis Linne, and for Terebratulina caput- 

 serpentis, T. retusa Linne. There is no good reason for biologists 

 to grumble of these changes, since they are in full accord with 

 the rules adopted by the International Zoological Congresses. 



c. s. 



4. Palceontology: Invertebrate; by Henry Woods. Fifth 

 edition, pp. 411, 173 figs., Cambridge, 1920. — This well-known 

 introduction to invertebrate paleontology, appearing first in 1893, 

 is now in its fifth edition. Emphasis is placed on the forms found 

 commonly as fossils, although something is said of all groups, 

 even of those not found fossil. The book is to be regarded as the 

 background for a laboratory course in which a few hundred 

 genera are studied mainly from their mature characters ; very lit- 

 tle is said of their ontogeny, phylogeny, or classification. The 

 illustrations are usually diagrams, designed to bring out the 

 essential characters of stocks — probably enough for a laboratory 

 manual. All in all, the work is probably the best elementary 

 text-book of invertebrate paleontology, and is easily adaptable to 

 American colleges. c. s. 



5. The life of the Pleistocene or Glacial Period; by Frank C. 

 Baker. Univ. of Illinois Bull., vol. 17, No. 41, 476 pp,, 57 pis., 

 1920. — This comprehensive and detailed monograph of the life of 

 the American Pleistocene is the foundation upon which all suc- 

 ceeding students of glacial floras and faunas will build. None of 

 the species is described or illustrated, but a great number of local 

 assemblages are listed, and the specific identifications have the 

 backing of ten specialists. Of plants, there are 145, and of these 



