Geology and Natural History. 79 



porids still remain here as in former editions with the Tabulate 

 corals. Beechers classification of the Brachiopocla and Trilobita, 

 while mentioned, are not accepted. This conservatism is also 

 seen in the geological colnrrin and particularly in the Paleozoic, 

 where Silurian system is retained for the Ordovician and Silurian, 

 and the Carbon system embraces our Pennsylvanian and Missis- 

 sippian systems. The book is nevertheless the best so far in the 

 German language and should be used by teachers of paleontology 

 in connection with the Zittel-Eastman English translation of the 

 first edition, entitled Text-Book of Paleontology. c. s. 



2. Notes on Ordovician Trilobites, parts II, III and IV ; by 

 Percy E. Raymond. Annals Carnegie Mus., vol. VII, No. 1, 

 1910; 35-80, pis. xiv-xix. — The author, now a member of the 

 Geological Survey of Canada, revises the trilobites of the New 

 York- Vermont Chazy, and the Asaphidae of the Beekmantown, 

 Lowville and Black River formations bordering the Adirondacks. 

 A number of new species are described along with the following 

 new genera or subgenera, — Isoteloides, Hemigyraspis, and Vog- 

 desia. 



The following European genera are for the first time recog- 

 nized in this country, — Asaphelhis, Basilicus, and Onchometopus. 



Two new subfamilies of Asaphidas are erected, — (1) Ogyginaz 

 for Ogygia, Niobe, Asaphellus, Symphysurus, Nileus, Vogdesia, 

 Illsenurus, Megalaspis, and Megalaspides ; and (2) Asaphince for 

 Basilicus, Ptychopyge, Pseudasaphus, Asaphus, Onchometopus, 

 Isotelus, and Isoteloides. The author is well acquainted with 

 the European literature and is making decided efforts to get 

 entire specimens so that even fragments may be of value in 

 stratigraphy. c. s. 



3. A Preliminary List of the Fauna of the Allegheny and 

 Conemaugh Series in Western Pennsylvania; by Percy E. 

 Raymond. Annals Carnegie Mus., Vol. VII, No. 1, 1910 : 144- 

 158, pis. xxiv-xxviii. — For several years the author has been 

 gathering the marine fossils in the Pennsylvanian of central 

 western Pennsylvania, resulting in 97 species here listed accord- 

 ing to the various zones from which they were taken. Of these 

 28 are restricted to the Allegheny series and 52 to the Cone- 

 maugh. Three new species are described and a new chiton 

 genus Glaphurochiton. c. s. 



4. The British Carboniferous Orthotetinae ; by Ivor Thomas. 

 Mem. Geol. Surv. Great Britain, Pal. I, 1910 ; 83-134, pi. 13. — 

 A very important revision of the various brachiopod genera of 

 this subfamily and of the British Carboniferous species. The 

 author recognizes two groups of genera, (1) having a ventral sep- 

 tum in the muscular area as in Orthotetes, Derbyia (has not the 

 same generic characters as Orthotetes as heretofore supposed), 

 and Geyerella ; and (2) without such a septum as in Schucher- 

 tella, Streptorhynchus, and Meekella (Places here both plicate 

 and non-plicate species). As the genus is based on plicate forms 

 having a very different general aspect from the two new English 



