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PHYSIOGRAPHIC DIAGRAM OI 
THE UNITED STATES q 
Size 62> 44 inches, Scale 50 miles to one inch 
By A. K. LOBECK 
Department of Geography, University of Wisconsin 
This diagram is intended to be used asa guide in teaching the physiography < 
geology of the United States. The topographic features are expressed with the} 
of revealing or suggesting the underground structure, and the general charact 
the underlying rock. 
An introductory drill such as having students draw cross sections through | 
Adirondack uplift, the Cincinnati or Nashville Domes, across the Appalach 
different places, through the Black Hills, Central Texas, the Ozarks, Wisco 
many other regions is followed up with the use of other available material, ¢ 
aly state geological maps and the United States Geological Survey topog 
sheets. } 
The student frequently fails to note the significance of a locality with relation 
the physiographic province or geological region as a whole. This is overcom 
requiring the student to locate upon the diagram the position of the topog 
quadrangles under consideration. As practically every topographic map pub 
by the Survey was consulted in the preparation of the Diagram, mast of the signii 
cant features are recognizable in the Diagram too. Seventeen geological pro 
are discussed briefly on the map. E 
PRICES 
Student edition (one color) with one-half of U.S. on each side of sheet, size 31X 
inches. 4 
SInZlelcopyaeneeeeeee $1.25 Fifty copies, each......... $1.00 
Ten copies, each...... One hundred copies, each. . 
Two color edition with entire map on same side of sheet, size 6244 inches. — 
SINclelcopyane eee $2.25 Fifty copies, each......... $1.75 
Ten copies, each...... 2.00 One hundred copies, each.. 1.50 — 
Prices on two color edition, mounted on cloth for permanent class room 
62 X44 inches. 
With Common Rollers at Top and Bottom.................-- $4.50 q 
On Spring Roller and Board with Dust Proof Cover........... 7.50 
In’ Steel Spring: Roller Gases. sac ciee ieiee ene 8.75 ; 
A. JI. NYSTROM & COMPAR 
2249 Calumet Ave. - - - CHICA 
