ADVERTISEMENTS. 
The Ive Ives Strata ° Altitude Maps 
F THE UNITED STATES AND PART OF CANAD 
By Pu T. B. Ives, F. G. S., Member of the rican Institute of Mining tin ee the AME 
Association for the Advancement or Selene, nd the Canadian Institute. 
THE STRATA MAP 
consists of a series of S i d Maps, rep- 
resenting the seven Geological a s of the coun. 
try, colored as recommended by the International Con-  ' 
gress ait pte ogists, ea being cut away ag airs 
several systems in nature 
It ae are qma superposition, PM 
ation, and outcrop of strata, with the phenom- 
pis gcn e outliers, inliers, dip, strike, 
ty, etc., and the Cards may be bent 
to show synclinal or aiai folds. 
THE ete MAP 
is a novel device by om —— of the ** Strata Map" gis from any elevation ipud previ- 
ously published, the e being carefully embossed to repre-ent the River Systems and 
Mountain Prominences, quud € sese are em his ed by strongly contrasted colors. 
The Map is beautifully gotten up, framed in oak and Saniha, and arranged to hang on the 
wall or stand erect on the table. 
The two Maps are contained in a neat cloth- pre case, gilt lettered. 
Size, 21x15 inches. Price 
BINDER & KELLY, Publishers, 
AMERICAN NATURALIST OFFICE, 
P. O. BOX 712. 1293. PHILADELPHIA, PA. 
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