192 The American Geologist. Soptomber, 1896 
Science, June 2G. Fishes, living and fossil, Theo. Gill: Current notes 
on physiography, W. M. Davis. 
Science, July .3. The Lacoe collection in the National Museum, G. 
B. Goode; Note on the Devonian Palteospondylus, Theo. Gill. 
Science, July 10. Work of the United States Geological Survey for 
the fiscal year 1896-97. W. F. Morsell; Current notes on physiography, 
W. M. Davis. 
Science, July 17. A central Wisconsin baselevel, C. R. Van Hise. 
Science, July 24. Recent hydrographic examinations in the Appala- 
chian area, C. C. Babb; Current notes on physiography, W. M. Davis. 
Nat. Geographic Mag., June. The Seine, the Meuse and the Moselle, 
W. M. Davis. 
Journ. of Geol., May-June. Classification of marine Trias, J. P. 
Smith; The geology of the Little Rocky mountains, W. H. Weed and 
L. V. Pirsson; Schistosity and slaty cleavage, G. F. Becker; Deforma- 
tion of rocks. III. C. R. Van Hise: Lai-ge scale maps as geographical 
illustrations, W. M. Davis. 
Am. Jour. Sci., July. Observation on percussion figures on cleavage 
plates of mica, T. L. Walker; Peareeite. a sulpharsenite of silver, and on 
the crystallization of polybasite, S. L. Penfield; Hydrology of the Mis- 
sissippi, J. L. Greenleaf; Preliminary note on the relation of certain 
body-plates in the dinichthyids, C. R. Eastman; Tertiary floras of the 
Yellowstone National park, F. C. Knovvltou; New helodont reptile 
(Stegomus) fnmi the Connecticut River sandstone. O. C. Marsh; Sepa- 
ration and its bearing on geology and zoogeography, A. E. Ortmann. 
Am. Jour. Sci., Aug. Geologic efficacy of alkali carbonate solution, 
E. W. Hilgard: Northupite, pirssonite, a new mineral, gaylussite and 
hanksite from Borax lake, San Bernardino Co,. Cal., J. H. Pratt: Bear- 
paw mountains of Montana, second paper, W. H. Weed and L. V. Pirs- 
son; Composition and structure of the Hamblen Co., Tenn., meteorite, 
G. P. Merrill; Wardite, a new hydrous basic phosphate of alumina, J. 
M. Davison. 
Appletons' Pop. Sci. Month., July. Causes, stages, and time of the 
Ice age, Warren Upham. 
Same, Avig. The stone forests of Floris.sant, A. Heilprin: Sketch of 
W. W. Mather, with portrait. 
Technology Quart., March. The sea mills of Cephalonia, F. W. 
Crosby and W. O. Crosby. 
Kansas Univ. Quart., July. Hoplophoneus occidentalis, E. S. Riggs; 
On the dermal coverings of Hesperornis, S. W. Williston. 
Terrestrial Magnetism, July. A summary of the results of the recent 
magnetic survey of Great Britain and Ireland conducted by Profs. 
Riicker and Thorpe (contains a chapter on the relation between the 
magnetic and the geological constitution of Great Britain and Ireland), 
A. W. Riicker. 
