72 Scientific Intelligence. 



12. 2 he Bryozoan Fauna of the Rochester shale ; by Rat S. 

 Bassler. Bull. No. 292, U. S. Geol. Survey, 1906, 137 pp., 31 

 pis. — This Silurian formation of western New York has 48 genera 

 and 80 species of Bryozoa, of which 30 forms are here described 

 for the first time. The writer shows that the Rochester forma- 

 tion is chiefly, if not exactly, equivalent of the Osgood beds 

 along the western side of the Cincinnati axis, for more than 40 

 per cent of the Bryozoa of the former i*egion are also found in 

 the West, while less than 20 per cent are common to the Roch- 

 ester and the Waldron shale which lies above the Osgood. Pale- 

 ozoic Bryozoa are usually regarded as limited in geographical 

 range, but in this case at least five species are common to Amer- 

 ica and the Wenlock (Buildwas) of England and of Scotland. 

 Four of these forms, however, belong to the simpler Ctenosto- 

 mata and Cyclostornata. c. s. 



13. The Fossil Fauna and Flora of the Florissant ( Colorado) 

 shales ; by T. D. A. Cockerell. Univ. Colorado Studies, iii, 

 1906, pp. 157-176, one plate. — This paper gives a summary of the 

 fossils thus far recovered from about Florissant. There are 1 1 

 vertebrates (2 birds, 9 fishes), 1 mollusc (Planorbis), 1032 insects 

 of which 608 are described, 213 Coleoptera (187 undescribed), 

 2 Hymenoptera (228), 9 lepidoptera (7), 54 Diptera, 24 Orthop- 

 tera, 80 Homoptera, 140 Heteroptera, 6 Ephemeroptera, 12 

 Neuroptera, 9 Odonata, 6 Platyptera, 22 Trochoptera, 1 Thysa-. 

 nura, 1 Ballostoma, 30 spiders, and 145 plants. 



The author states " that we must cease to refer to the Floris- 

 sant shales as belonging to the Green River Group," and with 

 Lesquereux regards the fossils as of Miocene age. The climate 

 of Florissant was then "moister and warmer than that of the 

 present day. ... a warm temperate region . and . . . semi- 

 alpine or boreal in character." c. s. 



14. Geological Survey of Ohio, Edward Ortox, Jr., State 

 Geologist, Bulletin Six : A Bibliography of Ohio Geology. 

 Part I, pp. 1-233, a subject Index of the Publications of the 

 Geological Survey of Ohio, from its inception to and including 

 Bulletin Eight of the Fourth Series ; by Alice Greenwood 

 Derby. Part II, pp. 235-332. A Bibliography of the Publica- 

 tions relating to the Geology of Ohio, other than those of the 

 State Geological Survey ; by Mart Wilson Prosser. Colum- 

 bus : August, 1906. — The completeness of the bibliographies in 

 the two parts of this Bulletin make it a highly important contri- 

 bution to all those concerned with the geology of Ohio. 



15. Ifandbuch der Mineralogie • von Dr. Cakl Hintze. 

 Zehnte Lieferuug. Pp. 1441-1600, with 35 text-figures. Leip- 

 zig, 1906 (Veit & Comp.). — Mineralogists will be interested in 

 the appearance of the tenth part of Volume I of Hintze's Min- 

 eralogy. It completes the description of quartz, includes also 

 the other forms of silica, and the three forms of TiO„, brookite, 

 anatase (octahedrite) and rutile. This is the twenty- second 

 part of the entire work, which was begun in 1889, and brings 

 the completion of the whole within sight, an end which both the 

 author and the mineralogical public have long desired. 



