WATER SOILS. 283 



these soils of the same hydraulic value (uuder O.Ul raui. in diameter), as 

 determined Ijy Schoue's apparatus, were used. These were flocculated 

 as in previous exi)erimeuts, and in order to hnd the cause of the great 

 variation in flocculation observed the original soil and the flocculated 

 and the uonflocculated i)arts were examined with reference to their 

 content of sand and clay (insoluble in hydrochloric acid) and zeolites 

 (soluble in hydrochloric acid). From the results the proportion of 

 sand and clay, and zeolites flocculated and not flocculated, and the 

 composition of the zeolites in the original, flocculated, and uonfloccu- 

 lated i)ortions are calculated. 



No definite relation between the water content of the sand and clay 

 (insoluble portion) of the diflereut soils and their susceptibility to floc- 

 culation was traced. Beyond this, no conclusions are deemed war- 

 ranted at the present stage of the investigation. 



Water and water analyses, C. W. McCurdy (Idaho Stu. Bid. 8, pp. 25). — A gen- 

 eral discussion on water and water supply, accompanied by analyses of 27 samples 

 of water collected in and around Moscow, Idaho, or sent in from other parts of the 

 State. A scale of prices for water analyses is appended. 



Analyses of water {ilas8achusetfs State Sta. llpt. 1S93, pp. 332-335). — Analyses of 

 93 samples of water with reference to fitness for domestic use are rej^orted with 

 rules for interpreting the results. 



The chemical composition of the atmosphere, T. L. Phipson (Coiiipt. Bend., 

 119 {1S94), Xo. S, pp. 444-416). 



Concerning the rainfall and nitrogen content of the rain water, T. Mahh 

 {East Java Ejpt. Sta. Contr. 47, j>p. 03-6?). 



Investigations concerning the relation of atmospheric precipitation to plants 

 and soils, E. Wollxv {Forsch. Ceh. ayr. I'hys., 17 (1894), No. 3 and 4, pp. 350-372). 



Bacteriological examination of potable w^ater (Abs. in Chem. News, 70 (1894), 

 No. 1817, p. 149). 



Microorganisms in water, their significance, identification, and removal, P. 

 EiiANKLAXD (London : Longmans, (irecn .f- Co. j reviewed in Analyst, 1894, Au/j., p. 192). 



Electrical sanitation, C. W. Chaxcellor (V. S. Consular Rpt. 1894, Aug., pp. 

 639-64?). — A discussion of the purification of sewage waters hy means of the decom- 

 position of chlorid of magnesia etfected 1)y the electric current. 



Preliminary work on some Kentucky marls, A. M. Peter (Kentucky Sta. lipt. 

 1892, pp. 36-42).— K reprint of Bulletin 39 of the station (E. S. R., 3, p. 792). 



Analyses of soils (Massachusetts State Sta. Rpt. 1893, pp. 324, 325). — Chemical 

 analyses of 3 samples. 



.Advantages and effects of deep plowing, L. Grandeau (Jour. Afjr. I'rat., 58 

 {1894), No. 4, pp. 487-490). — A popular article, with determinations of the water con- 

 tent of soil. 



Studfes in moor culture, Koehl (Forstw. Centbl., 16 (1894), \o. 9 and 10, pp. 

 452-470).— (To be continued.) 



Investigations relating to the modifying of the physical properties of moor 

 soils by li^ixing and covering" w^ith sand, E. Wollxy (Forsch. Geb. agr. Phys., 17 

 (1894), No. 3 and 4, pp. 229-290). 



The amount and the role of carbonate of lime in arable soils, A. Bernard ( liev. 

 A(jr. lie Maurice, 8 (1894), No. 7, pp. 154-160). — (Continued.) 



Agricultural charts of the Canton of Ferte-sous-Jouarre (Jour. Ayr. I'rat., 58 

 {1894), No. 39, pp. 462-465, fig. 1). 



