654 whitmore. MILITARY GEOLOGY [Ch. 34 



are among the most important of many military operations which 

 require, for proper planning and prosecution, an application of the 

 principles of sedimentation. Further work is needed in predicting 

 ground conditions from aerial photographs, especially in the Arctic, 

 sub-Arctic, and tropics; this in turn will require greater knowledge 

 of plants as indicators of kind of ground, and of the origin, distribu- 

 tion, and characteristics of such materials as coral and permanently 

 frozen ground. The effect of soil on cross-country vehicular movement 

 must be more quantitatively expressed than it can be at present; this 

 and other military problems involving soil can be solved much more 

 easily when it is possible to interpret the many existing genetic soil 

 maps in terms of the engineering properties of soil. 



REFERENCES 



Bogomolov, G. W., et al. (1945). Voyennaya geologiya (Military geology): 



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 Brooks, A. H. (1920). The use of geology on the Western Front: U. S. Geol. 



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 Bucher, W. H., et al. (1941). Bibliography of military geology and geography: 



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 von Biilow, Kurt (1938). Wehrgeologie: Leipzig. (E.R.O. Translation No. T-23, 



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