EUKAL ENGINEEEING. 683 



A note on well boring, W. M. Schutte (Depf. Agr. Bombay Bui. 68 (1914), 

 pp. 13, pis. 12). — This bulletin describes methods and machinery for well boring 

 and methods for lifting water, considered to be applicable to Bombay conditions. 



Surface water supply of Colorado River basin, 1913 (U. S. Geol. Survey, 

 Water-Supply Paper 359 (1916), pp. 260, pis. 2). — This report, prepared in co- 

 operation with the States of Arizona, Utah, and New Mexico, presents the 

 results of measurements of flow made on streams in the Colorado River basin 

 during 1913. 



Surface water supply of Hudson Bay and upper Mississippi River basins, 

 1914 {U. S. Geol. Survey, Water-S apply Paper 385 (1915), pp. 247+A'A'/X, 

 pis. 2). — This report, prepared in cooperation with the States of Iowa, Illinois, 

 Wisconsin, and INIinnesota, presents the results of measurements of flow made 

 on streams in the Hudson Bay and upper Mississippi River drainage basins 

 during 1914. 



Ground water in the Waterbui-y area, Connecticut, A. J. Ellis ( U. S. Geol. 

 Survey, Water-Supply Paper 397 (1916), pp. 73, pis. 4, figs. iO).— This report 

 deals with the geology, source, and occurrence of ground water and ground wa- 

 ters for municipal and private use in an area of 171 square miles in west-central 

 Connecticut. Methods of developing ground water supplies for private use in 

 particular are discussed, including drilled, driven, and dug wells, and infiltra- 

 tion galleries. 



Analyses of mineral and potable waters, A. M. Petee, S. D. Av^eritt, and 

 J. S. McHabgue (Kentucky Sta. Rpt. 1912, pp. 527-5.50).— Analyses of 55 sam- 

 ples of potable and mineral waters from 34 counties in Kentucky are re- 

 ported. 



Analyses of mineral and potable waters, A. M. Petek, S. D. A\'eritt, J. S. 

 McHakgue, and A. S. Behrman (Kentucky Sta. Rpt. 1913, pp. 593-618).— 

 Analysis of 68 samples of potable and mineral waters from 33 counties in 

 Kentucky are reported. 



Analyses of mineral and potable waters, A. M. Peter, S. D. Averitt, and 

 J. S. McHargue (Kentucky Sla. Rpt. 1914, pt. 1, pp. S5-ii8).— Analyses of 92 

 samples of potable and mineral waters from 42 counties in Kentucky are re- 

 ported. 



Water supplies and health, in Massachusetts, A. L. Gammage (Engin. Netvs, 

 74 (1915), No. 23, pp. 1077-1079) .—StwUes of hardness and color and the corre- 

 sponding typhoid fever and general death rates indicate that the hardness of 

 the water lias no effect upon health, but that color is to some extent an index 

 of the healtlifulness of supplies. 



The Schumann rays as an agent for the sterilization of liquids, W. T. 

 Bovie (Dot. Gaz., 60 (1915), No. 2, pp. 144-148, fig. i).— Tests are described as 

 carried out on water passed through an improved sterilizer, in which a long 

 exposure of a thin layer of the liquid to light of wave lengths between 1,675 

 and 1,850 Angstrom units was secured. By this treatment the bacterial count 

 of tap water was reduced from 50 to 4 per cubic centimeter and the fungal 

 count from 3 to 1 per cubic centimeter, but absolute sterilization was not ob- 

 tained. 



A list of references to literature bearing on the subject is appended. 



First annual report of the Iowa state highway commission (Ann. Rpt. 

 loica Highway Com., 1 (1913-14), pp. 351, pis. 32, fig. 1). — This report covers 

 the periods from April to December, 1913, and from December, 1913, to De- 

 cember, 1914. In addition to the departmental reports are sections devoted to 

 road legislation, the most important phases of highway work, investigations and 

 research, finances, and the requirements of roads through and adjacent to state 



