512 EXPERIMENT STATION RECOED. 



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

 1912, A. H. HoRTON, W. G. Hoyt, and H. J. Jackson (U. S. Geol. Survey, 

 Water-Supply Paper 325 {1914), PP- 193, pis. 2). — This report presents the 

 results of measurements of flow made on the Hudson Bay drainage area in the 

 United States and the upper Mississippi River drainage basin during 1912. 

 Daily and monthly discharges at each station are given. 



Surface water supply of the United States, 1912. — VII, Lower Mississippi 

 Biver basin, R. Follansbee (U. 8. Geol. Survey, Water-Supply Paper 327 

 (1914), PP- 84, pis. 2). — This paper presents results of measurements of flow 

 made on the Arkansas River, Yazoo River, and Red River basins and their 

 tributaries, during 1912. In addition are given daily gage heights at each 

 station. 



Surface water supply of western Gulf of Mexico basins, 1912, W. W. 

 FoLLETT, R. Follansbee, and G. A. Gray ([/. S. Geol. Survey, Water-Supply 

 Paper 328 {1914), pp. 121, pis. 2). — This paper reports measurements of flow 

 made on the Rio Grande, Saguache, San Luis, Kerber, Rio Alamosa, Conejos, 

 Costilla, Rio Colorado, Rio Hondo, Rio Pueblo de Taos, Rio Taos, Rio Lucero, 

 Rio Fernando, Chama. Brazos, Horn, Rio Yallecitos, Rio Puerco, Bluewater, 

 San Jose, Pecos, Devils River, Rio Salado, and Rio San Juan basins and several 

 interior basins of New ^Mexico. Daily and monthly discharges are given for 

 each station. 



Clean water and how to get it, A. Hazen {New York and London, 1914, 

 2. ed. rev. and enl., pp. XII-\-196, pis. 18; rev. in Engin. Rec, 69 {1914), No. 15, 

 p. 429). — The second edition of this work (E. S. R., 19, p. 513) contains addi- 

 tional chapters on the so-called redwater troubles and on water sterilization. 



The mechanical filtration of moorland water supplies, and the action of 

 water on lead, A. S. Del^pine (Jour. Roy. Sanit. Inst., 35 {1914), ^^o. 3, pp. 

 117-132). — In experiments with unpolluted moorland water supplies having a 

 marked action on lead the author found that chemical precipitation combined 

 with mechanical filtration removed all discoloration, reduced more or less the 

 total number of bacteria, and satisfactorily corrected the action on lead. 



Sterilization of water by filtration, K. Charitschkoff {Cliem. Ztg., 38 

 (1914), No. 20, p. 222; uhs. in Gsndhts. Ingen., 37 {1914), No. 12, p. 218).— The 

 author found that all porous substances form hydrogen peroxid in the presence 

 of water. He points out that the sterilizing effect of ultra-violet light on water 

 depends chiefly on the formation of hydrogen peroxid, and states that the same 

 result can be obtained by filtering water through pumice stone, asbestos, or 

 horizontally through a metal brush. 



SOILS— FERTILIZEES. 



Field operations of the Bureau of Soils, 1911 (thirteenth report), M. 

 .Whitney et al. {U. S. Dept. Ayr., Field Operations of the Bureau of Soils, 

 1911, pp. 2356, pis. 27, figs. 61, maps. 50). — This report contains a general 

 review of the field operations of the Bureau of Soils during 1911 by the chief of 

 the Bureau, together with detailed accounts of the following surveys : 



Plymouth County, Mass., by W. E. McLendon and G. B. Jones; Windham 

 County, Conn., by W. E. McLendon; Jefferson County, N. T., by M. E. Carr 

 et al. ; Bedford County, Pa., by C. J. Maim and W. E. Gross; Bradford County, 

 Pa., by P. O. Wood et al. ; a reconnoissance soil survey of northeastern Pennsyl- 

 vania, by C. F. Shaw et al. ; the Sussex area, N. J., by H. Jennings et al. ; Rich- 

 mond County, N. C, by R. B. Hardison et al. ; Johnston County, N. C, by W. E. 

 Hearn and L. L. Briukley ; Fairfield County, S. C, by M. E. Carr et al. ; George- 

 town County, S. C. by W. E. McLendon et al. ; Chatham County, Ga., by W. J. 



