Geology and Natural History. 305 
‘hands of every teacher of geology, and of all who have special 
interest in the science. Moreover it is a model for a treatise of 
the kind. 
8. Papers on the Eastern and Northern Extension of the Gulf 
Stream.—From the German of Dr. A. PETERMANN, W. von 
Freepen and Dr. A. Musny. Translated, in the United States 
Hydrographic office, in charge of Captain R. H. Wyman, . 
by E.R. Knorr. 388 pp. 4to. Washington, 1871.—The Bureau 
Asia. 
9. Corals and Coral Islands ; by James D, Dana. 398 PP. large 
8vo. with several maps and numerousillustrations. New York, 1872. 
(Dodd & Mead, 762 Broadway).—This work is a general treatise 
< of living corals, are given. The frontispiece con- 
tains colored figures of species of Actinis or Sea-Anemones, from 
gured in the author's Report on Zodphytes are given in @ table 
prepared by Prof, Verrill. 
_ the volume is printed in an unusually handsome style. The 
illustrations add much to its beauty. : 
10, Report of the Geological Survey of the State of New Hamp- 
shire, showing its progress during the year, 1870, by ©. H. Hiren- 
cock, Ph.D., State Geologist, Prof. Geol. and Min. in Dartmouth 
Aw. Jour. 8c1—Tump Senres, Vor. III, No. 16.—APRIL, 1872, 
