...practical conclusions that have been drawn are given in Water Supply Paper No. 185, which may be obtained upon application to the Director of the United States Geological Survey, Washington, DC These results are by no means applicable merely to large cities, but certain lessons of practical value...

...obtain copies of any of the above photographs, or lantern-slides from the same negatives, should apply to the Director of the United States Geological Survey, Washington, DC The photographs are not k-ept in stock, but will be printed as ordered with such promptness as the regular...

...obtain copies of any of the above photographs, or lantern-slides from the same negatives, should apply to the Director of the United States Geological Survey, Washington, DC The photographs an1 not kept in stock, but will be printed as ordered with such promptness as the regular...

...obtain copies of any of the above photographs, or lantern-glides from the same negatives, should apply to the Director of the United States Geological Survey, Washington, DC The photographs are not kept in stock, but will be printed as ordered with such promptness as the regular...

...with skillful handling can be made a very valuable part of school equipment. The map can be had on application to the Director of the United States Geological Survey, Washington, DC, for 60 cents ; and can be mounted by any reliable map-mounter for about $1.25 more. — Geo. B. Hollister,...

...Territory, are for sale, and the folio, w.-.ich is No. 98 In the series, may be obtained for 25 cents on application to the director of the United States Geological Survey. Washington. DC The Federal Asphalt Company of Chicago has Hied a mortgage at Ellzabethtown, Ky., of $500,000 to the American...

...Water-Supply and Irrigation Paper, No. 106, is published for free distribution, and may be obtained on application to the Director of the United States Geological Survey, Washington, DC 198 • . •Photo by CN liiown, '81 LAKE MKXDOTA DHIVE AT BLACK HAWK. THE WISCONSIN ALUMNI MAGAZINE...

...until they were mapped in detail and sampled by Mr. Schultz . A copy of Bulletin 680 can be obtained on application to the Director of the United States Geological Survey, Washington, DC PROSPECTIVE OIL TERRITORY IN NORTHWESTERN MONTANA. Predictions that oil may be obtained from a certain...

...pages. Most of the reports are illustrated by sketch maps. Copies of any of the chapters may be had on application to the Director of the United States Geological Survey, Washington, DC CONTOUR MAP MAKING. By LEONARD RIGIITER, Bayonne, NJ Since most of the maps now prepared by the United...

...covers the literature of American geology from 1732 to the end of 1915. Bulletin 645 may be obtained on application to the Director of the United States Geological Survey, Washington, DC BOOKS RECEIVED. Sixth Biennial Report of the State Superintendent of Public Instruction of Oklahoma....