V/I LBV BOOKS 



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Handbook for Field Geologists 



By C. W. HAYES, Ph.D., Late Chief Geologist, U. S. Geological Survey. 

 Third Edition, Thoroughly Revised and Enlarged, by SIDNEY 

 PAIGE, Geologist in Charge, Division of Geology, U. S. Geological Survey. 



This new edition gives, in a practical, convenient way, real serviceable 

 data of value to all geologists. Part I is a concise summary of the methods 

 and instruments most useful in fieldwork, while Part II presents outlines and 

 schedules covering special investigations in the several fields of geology, such 

 as the interpretation of land forms, glaciers and glacial deposits, petrology, 

 structural geology, metalliferous and nonmetalliferous deposits, etc. 



166 pages. 4-^ by 6|. 20 figures and 3 plates. Flexibly bound, $2.50 postpaid. 



Mineral Land Surveying 



Third Edition, Revised and Enlarged. 



By JAMES UNDEEHILL, Ph. !>., Mining Engineer, U. S. Mineral Sur- 

 veyor of Colorado. 



Describes the methods used at the present time in the surveying of mineral 

 lands in the western portion of the United States. In this edition several 

 additions have been made, especially of the treatment of the direct solar obser- 

 vation, and many changes of value incorporated. 



23T pages. 4^ by 7. 43 figures. Flexibly bound, $3.50 postpaid. 



A Manual of Determinative Mineralogy 



Third, Revised and Enlarged Edition. 



By J. VOLNEY LEWIS, -Professor of Geology and Mineralogy in Eutgers 

 College, State University of New Jersey. 



Essentially a new book, rewritten on the basis of many years' experiences 

 in teaching, and enlarged to more than double the size of former editions. 



2&8 pages. 5^ by 8. 31 double-page tables, 81 figures. Cloth, $3.00 postpaid 



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