WILEY BOOKS 



By H. RlES, PH.D., and THOMAS L. WATSON, Ph.D. 



Elements of Engineering Geology 



More than a condensation and simplification of the authors' larger text 

 'Engineering Geology, 1 since it has involved complete rewriting of many parts 

 of the larger book and the amplification of other parts. 



365 pages. 5^ by 8*4. 252 figures. Cloth, $3.75. 



Engineering Geology 



Outlines those fundamental principles which relate to engineering practice 

 including the character of rocks, their use in building, their structure and the 

 geological conditions which affect and control underground waters. 

 722 pages. 6 by 9. 249 figures, 104 plates. Cloth, $5.00. 



By H. RlES, PH.D. 



Clays: Their Occurrence, Properties and Uses 



Describes the occurrence, properties, methods of mining and the manu- 

 facturing and uses of a vast variety of clays. 



554 pages. 6 by 9. 112 figures, 44 plates. Cloth, $5.00. 



Economic Geology 



Presents, first, the non-metallic minerals and then the metallic, thus lead- 

 ing the reader from the simpler to the more complex phases of the subject. 

 856 pages. 6 by 9. 291 figures, 75 plates. Cloth, $5.00. 



By H. RlES, PH.D., and HENRY LEIGHTON, A.B. 



History of the Clay- Working Industry in the 

 United States. 



Mentions the important deposits of clay and takes up the developments in 

 manufacturing methods. 



270 pages. 6 by 9. Illustrated. Cloth, $2.50. 



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JOHN WILEY & SONS, Inc. 



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