Geology. 97 



No. 339. The Purchase of Coal under Government and Com- 

 mercial Specifications on the Basis of its Heating Value : with 

 Analyses of Coal delivered under Government Contracts ; by D. 

 T. Randall. Pp. 27. 



No. 343. Binders for Coal Briquets. Investigations made at 

 the Fuel-testing Plant, St. Louis, Mo. ; by James E. Mills. 

 Pp. 56 with 1 figure. 



Water-Supply and Irrigation Papers. — No. 212. Surface 

 Water Supply of the Great Basin Drainage 1906 ; by E. C. La 

 Rue, Thomas Grieve, Jr., and Henry Thurtell. Pp. iv, 98, 

 with 2 plates and 2 figures. 



No. 213. The Surface Water Supply of California, 1906. 

 With a Section on Ground Water Levels in Southern California. 

 (Great Basin and Pacific Ocean Drainages in California and Lower 

 Colorado River Drainages) ; by W. B. Clapp. Pp. 219, with 4 

 plates and 2 figures. 



No. 214. Surface Water Supply of the North Pacific Coast 

 Drainage, 1906; by J. C. Stevens, Robert Follansbee, and E. 

 C. La Rue. Pp. vi, 208, with 3 plates and 2 figures. 



No. 215. Geology and Water Resources of a Portion of the 

 Missouri River Valley in Northeastern Nebraska ; by G. E. Con- 

 dra. Pp. 59 with 11 plates. 



No. 217. Water Resources of Beaver Valley, Utah; by 

 Willis T. Lee. Pp. 5V, with 1 plate and 3 figures. 



3. Maryland Geological Survey ; William Bullock Clark, 

 State Geologist. Volume VI, pp. 572, pis. 51, figs. 19, with map. 

 Baltimore, 1906. — Part I of the present report on the physical 

 features of Maryland, by William Bullock Clark and Edwin B. 

 Mathews, is a somewhat elaborate compendium of the geological 

 and geographical features of the state, including the physiography, 

 geology, mineral resources, soils, climate, forestry, etc. The report 

 on the highways of Maryland, by A. N. Johnson, and state highway 

 construction, by Walter Wilson Crosby, make up Parts III and 

 IV, while Part V is a history of the origin, boundaries, etc., of 

 the counties of Maryland. A new geological and soil map 

 accompanies these descriptions. A large part of the material 

 contained in this volume has been previously published as de- 

 scriptive matter relating to Maryland's exhibit at the Louisiana 

 Purchase Exposition and in its present form will reach a greater 

 number of readers. h. e. g. 



4. Iowa Geological Survey, Samuel Calvin, State Geologist, 

 James H. Lees, Assistant State Geologist. Volume XVII; Annual 

 Report for 1906, with Accompanying Papers. Pp. 588, pis. 

 62, figs. 44. Des Moines, 1907. — The report for 1906 deals largely 

 with the economic resources of the state and includes a study of 

 Portland cement and the geology of quarry products in general. 

 There are included analyses of coals, limestones, chalks, clays, 

 shales, and marls and an account of tests of the Iowa building 

 stone. 



A new geological map of the state, compiled by T. E. Savage, 

 accompanies this report. h. e. g. 



Am. Jour. Sci. — Fourth Series, Vol. XXVI, No. 151. — July, 1908. 



7 . 



