240 Scientific Intelligence. 



Kayseria, Retzia, Rhynchospira, Ptychospira (n. g.), Uncites 

 Eumetria, Acambona, Hustedia (n. g.), TIncinella, Trematospira, 

 Parazyga, Anoplotheca, Coelospira, Leptocwlia, Vitulina, Ana- 

 baia, Nucleospira, Gyclospira (n. g.), Glassia, Zygospira, Cata- 

 zyga (n. g.), Atrypina, Atrypa, Gruenewaldtia, KarpinsJcia. 

 Other names appear in the very full synonymy. Many figures of 

 distinguishing characteristics are given in the text, and plates 

 xxi to lii are referred to which will be contained in the completed 

 volume. 



3. Salt and Gypsum Industries of New York, by F. J. H. 

 Merrill, Assistant State Geologist. Bulletin of the "N. Y. State 

 Museum, vol. iii, April, 1893, 90 pp. 8vo, with maps, plates and 

 sections. — Prof. Merrill treats briefly of the geological part of his 

 subject, and illustrates it with maps showing the distribution of 

 salt and brine wells as ascertained by borings. The economical 

 subjects are discussed with great fullness and with numerous 

 illustrating plates and figures. 



4. Bionomie des Meeres : Beobachtungen liber die marinen 

 Lebensbezirke und Existenzbedingungen ; von Johannes Wal- 

 ther. First part, an Introduction to Geology as a historical 

 science. 196 pp., 8vo. Jena, 1893 (Gustav Fischer). — Professor 

 Walther, of Jena, treats in this very instructive volume, in a con- 

 cise and systematic way, of the conditions of existence and range of 

 marine life, with reference to the bearing of the subjects on geol- 

 ogy. Some of the topics discussed, and illustrated by citations of 

 physical and biological facts, are the following : The marine 

 conditions connected with the arrangements of the continents, 

 with their bays, estuaries, etc., and with the oceans, of varying 

 depths, from the coasts downward, and of varying temperatures 

 and varying kinds of sea-bottom and other living conditions; the 

 influence of light and heat on growth and distribution ; of salinity 

 (with relation to which the author divides marine animals into the 

 Stenohaline, or those requiring waters having the normal salinity 

 of the ocean, the Euryhaline, or those capable of enduring a wide 

 range, from brackish water to the normal, and the Brack-water, 

 or those of brackish water) ; the influence of tides and waves ; of 

 currents and the general circulation ; and many other points of 

 special geological importance. Students in geology would profit 

 much by the careful study of Prof. Walther's work. It promises 

 well for the future parts of his Introduction to Historical Geology. 



5. North American Fauna, No. 1. The Death Valley Ex- 

 pedition: a Geological survey of parts of California, Nevada, 

 Arizona, and Utah. — Part II, containing Reports on different 

 departments by A. K. Fisher, L. Stejneger, C. H. Gilbert, C. 

 V. Riley, R. E. C. Stearns, C. H. Merriam, T. S. Palmer. 

 Published by authority of the Secretary of Agriculture. 394 pp. 

 8vo, with 14 plates, 1 large map and 4 small maps illustrating 

 geographical distribution. 



