FERTILIZERS. 1031 



Researches on moorland waters: I, Acidity, W. Ackroyd {Jour. Chem. Soc. 

 [London], 75 {1899), No. 436, pp. 196-200, fig. 1). — An account of studies especially 

 with reference to the fitness of such waters for drinking purposes. 



A new chemical process for the purification of water to be used for irriga- 

 tion, G. Truffaut (Jour. Soc. Xat. Ifort. France, 3. ser., 21 (1899), Feb., pp. 1S4-190). — 

 From the hardness, as determined with standard soap solution, the amount of mono- 

 potassium phosphate required to remove the larger part of the calcium and mag- 

 nesium and convert the harmful salts into useful forms is calculated. 



On methods of determining the fertilizer requirements of cultivated soils, O. 

 Kellner (Mitt. Oekon. Gesell. Sachsen, IS 97-98, II, pp.16). — A general discussion of 

 tli is subject. 



Directions forjudging the agricultural value of soils, K. Bielei: (Menzel u. von 

 Lengerke's Landiv. Kalender, lS99,pt. 2, pp. 53-80, jigs. 2). — A popular discussion of the 

 value of mechanical and chemical examination both of the surface and subsoil as 

 means of determining the agricultural value of soils. 



Soils and fertilizers, C. M. Blackford (Pop. Sci. Mo.,54 (1S99), Xo. 3, pp. 392-401). 



Analyses of the arable soils of Belgium, A. Petermann (Rev. Gen. Agron., 8 

 (1S99), Xo. 2, pp. 49-55; 3, pp. 113-120). 



Soil analyses at Wollongbar, II. V. Jackson (Agr. Gaz. Xew South Wales, 10 (1S99), 

 Xo. 2, pp. 166-168, fig. 1). — Analyses by F. B. Guthrie of samples from fertile and 

 infertile spots of a deep, friable, well-drained red loam showed the infertile spots to 

 be acid. 



The nitrogenous compounds which accompany humus acids in soils and peat, 

 F. Sestixi (landw. Vers. Stat., 51 (1S99), Xo. 2-3, pp. 153-158).— See E. S. R., 10, p. 424. 



Soil temperatures (Xew York Slate Sta. lipt. 1897, pp. G2S-634).—k tabulated sum- 

 mary of tridaily observations during 1897 at depths of from 1 to 18 in. 



FERTILIZERS. 



Analyses and valuations of fertilizers, L. A. Voorhees and J. P. 

 Street (New Jersey Stas. Bui. 132, pp. 61). — This bulletin gives trade 

 values of fertilizing constituents in 1898 and the results of examina- 

 tions of the standard commercial materials supplying them, as well as 

 of home mixtures, factory-mixed fertilizers, and miscellaneous fertiliz- 

 ing materials. Analyses and valuations are given of 85 samples of 

 standard raw materials, 305 brands of complete fertilizers, 28 samples 

 of ground bone, 23 samples of home and special mixtures, and 38 sam- 

 ples of miscellaneous products. The materials examined include, in 

 addition to the mixed fertilizers, nitrate of soda, sulphate of ammonia, 

 dried blood, ground fish, tankage, ground bone, superphosphates, muri- 

 ate of potash, sulphate of potash, kainit, double phosphate of potash 

 and magnesia, saltpeter lime, lime from soft clam shells, shell marl, a 

 lime fertilizer, wood ashes, crematory ashes, wool waste, bat guano from 

 Mexico, cotton-seed meal, and pigeon manure. 



The consumption of fertilizers in the State in 1897 was practically the 

 same as in 189G. The 305 brands of fertilizers examined were the prod- 

 uct of 81 manufactories, indicating a tendency to excessive multipli- 

 cation of brands. The fertilizers examined furnished on an average 

 the amount of plant food guaranteed, but in only GO per cent of them 

 was it distributed in the proportion stated. The average composition, 

 estimated value, and selling price of all brands of complete fertilizers 



