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ADVERTISEMENTS. 
The American Geologist for 1891. 
EDITED BY 
“Paor. S. Cauvin, University of Iowa ; Dr. E. W. CLAYPOLE, doi College; Jonn Everman, Lafayette College ; 
Dr. Perstvor Frazer, Franklin Institute; P Pror. F. W. Cracrx, Washburn Co adie Pror. C. L. HERRICK, 
Cincinnati University; Pror Colorado Schoo pr Mines; Dr. Ayprew C. Lawson, Fea 
Geological = oe of Canad m 0. Ur RICH, Ilin eG eological Survey ; Pror. I. c. Wart 
Uni rsity of West Virginia; Dr. ALEX. WINCHELL, » University of Michigan 
Pror. N. H. WiıscuerL, University of Min 
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orth American Geology and Paleontology. By S. A. MILLER. Recent 
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McNally’s Standard Atlas of the World. Oné large volume of 
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vemonstr tion of ce of Man before Adam. 
A study of ‘their condition, antiquity, sacta! ‘affinities and progress- 
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