ADVERTISEMENTS. 
The Ives Strata ° Altitude Maps 
Poh OR THE UNITED STATES AND PART OF CANAD 
By James T. B. Ivss 
F. G. 
Association Re the Advancement of Sci 
entor 
is a novel device by the inv 
a vac MT 
he Map | is beautifully gotten So: fram 
wall or stand erect on th 
Member of the — Institute of Mining [recie the PN 
and the Can 
THE STRATA MAP 
consists of a series of seven Ves aeos Maps, sut 
of | = 
(^. 
adian Institute 
ende 
gress of ee sts, ge poised being cut away agreeably 
rit f th al systems in nature. 
It graphical exhibits superposition, denud- 
ation, and outcrop of strata, with the phenom- 
a of esc Are. outliers, inliers, dip, strike, 
conformability, etc., and the Cards may be bent 
to show synclinal or anticlinal folds. 
The two figs are eee in a neat ile ree case, gilt lettered. 
Siz 
e, 21x15 inches. 
Pri 
BINDER & KELLY, Publishers, 
AMERICAN NATURALIST OFFICE, 
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d Saturday. t, ete. 
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Also on this GERE TE 
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