482 EXPERIMENT STATION EECORD. 



wish specitic iulbrmation as to methods." The topics treated are: Col- 

 lecting sauiples of soil from the field, including where samples should 

 be taken, how samples should be taken, importance of taking samples 

 at uniform depth, sacks for collecting soil samples, and forms for 

 description of samples; methods of mechanical analysis of soils, includ- 

 ing i^reparation of the samples, method of determining the amount of 

 moisture and organic matter, method of mechanical analysis, and inter- 

 pretation of the results; and determination of moisture in arable soils, 

 including how samples should be taken, errors liable to occur in taking 

 samples, time of taking samples, depth at which samples should be 

 taken, form for descrii)tiou of samples, cultivation and cropping, loca- 

 tion of plats, how plats should be laid off and treated, and method of 

 determining the amount of moisture in samples. 



Ammonia in rain ■water {Mississ'qjjn Sta. Bpt. 7S95, p. 102). — The amounts of 

 nitrogen in different forms in rain collected during 11 months in 1894 and 12 months 

 in 1895 are reported. The total nitrogen found in the rainfall for 11 mouths of 1894 

 was 2.847 lbs. per acre; in 1895, 3.308 lbs. 



The domestic filtration of ■water, F. Abba (L'Ingegneria Sanitaria, Torino, 1S95, 

 No. 7-S; rt&.v. in Cenlbl. Bakt. und Par. Med., 20 {1896), No. 22-23, pp. S40-842). 



Mineral ■waters (Mississii^n Sta. Bpt. 1895, pp. 103, 104). — Tabulated analyses of 

 20 samples of mineral water. "Salts of lime are the most conspicuous ingredients 

 in the waters of this State, though salts of magnesium, sodium, iron, and potassium 

 are present in greater or less quantities." 



Examinations of drinking ■water (Landw. Vers. Stat. Miinster, Eine Denkschrift, 

 1896, pj). 37-90).— This is a part of the review of the work ol this station from its 

 organization to the present time, and gives in tabular form Ihe results of examina- 

 tions with reference to sanitary quality of a large number of samples of drinking 

 water from a variety of sources, as well as complete analyses of several samples of 

 mineral water, and brook and river waters. 



A problem of aridity, C. M. Harger (Xorth Amer. Bev., 163 {1896), No. 6, pp. 

 711-715). — The almost incredible decrease in values and the exodus of settlers from 

 the far West, especially the western part of Kansas and Ne1)raska, and the causes 

 of the same, are discussed. 



The cultivation of marshes, O. Auhagen {Landw. Jalirh., 25 {1896), Xo. 4-5, pp. 

 619-874, figs. 5). 



Clays {Mississi2>pi Sta. Bpt. 1895, p. 105). — Tabulated analyses of 8 samples of clay. 

 "Clay constitutes one of the most valuable minerals in the State, and large beds of 

 excellent pottery and fire claj- are found in different sections." 



Marls {Mississijypi Sta. Bpt. 1895, pp 98, 99). — Tabulated analyses of 71 samples of 

 Mississippi marls. Marls are abundant in Mississippi, but of rather inferior quality. 



Soils, H. SXYDER {Minnesota Sta. Bpt. 1895, pp. 3-79, Jigs. 9, pi. 1, chart 1). — A 

 reprint of Bulletin 41 of the station (E. S. R., 7, pp. 476, 477, 484). 



Soils {2Iissi8sij)pi Sta. Upt. 1895, pp. 95-97). — Analyses of 47 samples of soils are 

 tabulated. 



Examinations of peat, J, Konig {Landw. Vers. Stat. Miinster, Eine Denkschrift, 

 1896, pp. 125-127). — Analyses of peats from a variety of sources are tabulated. 



Tile drains {Mississippi Sta, Bpt. 1895, pp. 52-55). — This is a brief account of the 

 experience of the station since 1889 on tile-drained laud of different character (E. S. 

 R., G, p. 847). 



