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PHYSIOGRAPHIC DIAGRAM 

 THE UNITED STATES 



Size 62X44 inches, Scale 50 miles to one inch 



By A. K. LOBECK 



Department of Geography, University of Wisconsin j 



This diagram is intended to be used as a guide in teaching the physiographyiid 

 geology o£ the United States. The topographic features are expressed with thelea 

 of revealing or suggesting the underground structure, and the general charactiOf 

 the underlying rock. ! 



An introductory drill such as having students draw cross sections througljhe 

 Adirondack uplift, the Cincinnati or Nashville Domes, across the Appalachiajin 

 different places, through the Black Hills, Central Texas, the Ozarks, Wisconsiijad 

 many other regions is followed up with the use of other available material, i»e- 

 cially state geological maps and the United States Geological Survey topogniuc 

 sheets. I 



The student frequently fails to note the significance of a locality with relaticto 

 the physiographic province or geological region as a whole. This is overcon jy 

 requiring the student to locate upon the diagram the position of the topogn uc 

 quadrangles under consideration. As practically every topographic map publ M 

 by the Survey was consulted in the preparation of the Diagram, most of the sijU- 

 cant features are recognizable in the Diagram too. Seventeen geological prov es 

 are discussed briefly on the map. 



PRICES i 



Student edition (one color) with one-half of U.S. on each side of sheet, size i'M 



inches. 



Single copy $1-25 Fifty copies, each $i-oo 



Ten copies, each i.io One hundred copies, each. . -QO 



Two color edition with entire map on same side of sheet, size 62 X44 inches. 



Single copy $2.25 Fifty copies, each $i-7S 



Ten copies, each 2.00 One hundred copies, each. . 1.5° , 



Prices on two color edition, mounted on cloth for permanent class room use,|« 



62 X44 inches. 



With Common Rollers at Top and Bottom $4'5o 



On Spring Roller and Board with Dust Proof Cover 7-5° 



In Steel Spring Roller Case 8.7S I 



A. J. NYSTROM & COMPAWi^ 



Publishers 2249 Calumet Ave., Chictf* 



