ADVERTISEMENTS. 
The Ives Strata a° Altitude Maps 
OF THE UNITED STATES AND PART OF CANADA. 
AS T he Ty for a peee 
lemen of tse cien 
— Institute of Mini 
and the Ca: 
THE STRATA MAP 
consists of a series of d Map 
e seven Geological Systems of the 
ed as recommended by the ee Con- 
gr ess a frolagists, portions being iti agr boric: 
f the eeu pou n natur 
ng Engineers, the American 
BE Institute. 
It graphically exhibits cae acne el 
se and Poni of strata, with the phenom- 
outliers, inliers, dip, strike, 
the Cards may be bent 
how synclinal or FOTS folds. 
N, ne, 
to s 
THE ALTITUDE MAP 
is a novel device by the inventor of the “ Strata 
oarit AS oe surface being 
The Map is s beautifully gotten "P, framed in 
wall or s n the table 
Map” differing — any elevation map prev 
carefully embossed to rep 
s, whilst successive altitudes are emphas 
oak and varnished, and arranged to hang on the 
esent the River Systems al 
ized by strongly contrasted colors. 
the me ‘Mage are contained in a neat cloth- a ararat case, gilt lettered. 
ze, 21x15 inches. 
Pric 
BINDER & KELLY, Publishers, 
AMERICAN NATURALIST OFFICE, 
m" O: BOX 712, 
1293, 
PHILADELPHIA, PA. 
J. Harper Bonnell Go. 
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