84 EXPERIMENT STATION RECORD. 



disinfectant solution so prepared to eacli 2 gal. of water, stir the water thor- 

 oughly and allow it to stand for fifteen minutes. At the end of that time the 

 disinfectant will have killed the disease germs and the water may be drunk 

 with a fair degree of safety." 



Water supply (Bui. Kans. Bd. Health, 11 (1915), No. 5, pp. U5-149, figs. 3).— 

 As a part of a sanitary survey of the farm premises of Sumner County, Kans., 

 analyses were made of 479 samples of water taken fx-om different representa- 

 tive wells of the county and 145 samples of cistern water. 



Of the dug well waters 22.3 per cent were good, S.7 per cent doubtful, and 

 69 per cent bad. Of the driven well waters 7S.7 per cent were good, 8.1 per 

 cent doubtful, and 13.2 per cent bad. Of the drilled well waters 55 per cent 

 were good, 15 per cent doubtful, and 30 per cent bad. Of the cistern waters 

 31.6 per cent were good, 13.1 per cent doubtful, and 54.3 per cent bad, and of 

 the cistern waters 65 per cent of those pumped, 44 per cent of those chain 

 pumped, and 77 per cent of those raised by bucket were bad. The opinion is 

 expressed that charcoal filters for cisterns on farms are useless. " The average 

 charcoal filter may, if properly cared for, have some efficiency ; but only a very 

 small percentage are properly cared for. Tlie remainder accomplish only one 

 end and that is the concentration of pollution l)y holding it from one rain to 

 the next." 



Biochemical and engineering aspects of sanitary water supply, G. W. 

 Fuller (Jour. FranJdin Itist., ISO (1915), No. 1, pp. 17-61, figs. 7).— This article 

 deals more particularly with the biological than with the chemical phases of 

 the sanitary features of water supplies. 



Water power on the farm, R. Stanfield (Trans. Highland and Agr. Sac. 

 ^cot., 5. scr., 27 (1915), pp. 192-211, figs, ii).— This article gives a simple 

 explanation of methods to be adopted in ascertaining the possibilities of power 

 development by means of a given supply of water, and describes various types 

 of water wheels, turbines, and water-power installations. 



Surface water supply of the south Atlantic and eastern Gulf of Mexico 

 basins, 1913 (V. S. Geol. Survey, Watcr-Supply Paper 352 (1915), pp. 8i, pis. 

 S). — This report presents the results of measurements of flow made on streams 

 in the south Atlantic and eastern Gulf of Mexico drainage basins during 1913. 



Profile surveys in Chelan and Methow River basins, Washington ( U. S. 

 Ocol. Survey, Wafer-Supply Paper 376 (1915), pp. S, pis. 5). — This pamphlet, 

 prepared in cooperation with the State of Washington under the direction 

 of R. B. Marshall, describes the general features and gives plans and profiles 

 of streams in the Chelan and Methow River basins. 



Profile surveys in 1914 in Umpqua River basin, Oregon (U. S. Geol. Sur- 

 vey, Water-Supply Paper 379 (1915), pp. 7, pis. 13). — This paper, prepared in 

 cooperation with the State of Oregon, under the direction of R. B. Marshall, 

 describes the general features of the Umpqua River basin and gives plans and 

 profiles resulting from surveys of streams in the basin during 1914. 



Daily river stages at river gage stations on the principal rivers of the 

 United States, 1911 and 1912, A. J. Henby (U. S. Dcpt. Agr., Weather Bur., 

 Daily River Stages, 1911-12, pt. 11, pp. 3S0). — This paper is the eleventh part 

 of a series of river gage readings and covers work for 1911 and 1912. 



Daily river stages at river gage stations on the principal rivers of the 

 United States, 1913 and 1914, A. J. Henkt (17. S. Dept. Agr., Weather Bur., 

 Daily Hirer Stages, 1913-1.'/, pt. 12, pp. 400). — This paper constitutes the 

 twelfth part of a series of river gage readings and covers work for 1913 and 

 1914. 



Equipment for current-meter gaging stations, G. J. Lyon ( U. S. Geol. Sur- 

 vey, Water-supply Paper 371 (1915), pp. 64, pis. 37, figs. iO).— This report 



