156 Recent Books and Pamphlets. 
Keyes, Charles R. — On the Forms of the Lower Coal- Measures of 
Central Iowa.— Descriptions of Two New Fossils from the De- 
vonian of Iowa. Reprint from the Proceedings of the Phila. 
Academy of Natural Sciences. From the author. 
Lord^ William R. — Homing of Dogs. From the author, 
Langley, S. /'.—Energy and Vision. Reprint from American Jour- 
nal of Science. Vol. XXXVI.,, Nov., 1888. From the author. 
Lydekker, R. — Catalogue of Fossil Reptilia, &:c. Extract from the 
Geological Magazine, Oct., 1888. From the author. 
Alacoufi, /^/m.— Catalogue of Canadian Plants, Part IV.— Endogens. 
From the Geol. and Nat. Hist. Survey of Canada. 
Le Marquis de Saporta. — Origine Paleon-tologogique des Arbres cul- 
tivees ou utilises par I'homme. From the author. 
Mitchell, Henry. — On the Circulation of the Sea through the New 
York Harbor. From U. S. Coast and Geodetic Survey. 
Muller, Max F. — Science of Thought. From the publishers. 
Newberry J. .S.— The Coals of Colorado. Ext. from the School of 
iMines Quarterly, Vol. IX, No. 4, July, 1888. From the author. 
Orr, Henry. — A Contribution to the Embryology of the Lizard. 
Reprint from the Journal of Morphology, Vol. I., No. 2, Dec, 
1887, From the author. 
Bulletin No. 2, Bulletin No. 3.— Ohio Agricultural Experiment Sta- 
Osborn, Henry Fairfield. — Additional Observations upon the Struc- 
ture and Classification of Mammalia. Ext. from Proceedings of 
Phila. Academy Nat. Science, Oct., 1888. From the author. 
Packard, A. 6".— Aspects of the Body in Vertebrates and Arthro- 
pods. Reprint from Am. Nat., Sept., 1884. From the author. 
Penna. State College Agricultural Station, Bulletin No. 3, Bulletin 
Pennsylvania Geological Survey, Atlas Bucks and Montgomery 
Counties.— Atlas Eastern Middle Anthracite Field, Part II.— 
Atlas Western Middle Anthracite Field, Part II.— Atlas North- 
ern Anthracite Field, Part II.— Atlas Annual Report, 1886, Part 
III.— Annual Report, 1886, Part IV. and Atlas. From the 
Survey. 
I No. 5, 
Report of the Pennsylvania State College for the year, 1887. 
