SOILS FERTILIZERS. 721 



The production of ammonium sulphate in 1908, C. G. Atwatek (Amcr. 

 Fcrt., 31 (li)0!)). \(). ,.^ /)/>. 10-12).— The world's production is given as 895,550 

 metric tons, of which 325,228 tons was i)roduced in Great Britain and ol3,0()() 

 tons in Germany. 



Manufacture of saltpeter, F. E. Drummond-IIay {Diplo. and Cons. Rpts. 

 [London], Ann. Scr., WO!), JSo. Ji218, p. 10). — This is a brief account of progress 

 in the construction and the probable capacity of various Norwegian works for 

 the manufacture of lime nitrate, nitric acid, and other products. 



The new nitrogen manures, II. von Feilitzen {Ahs. in Jour. Soc. Chan. 

 IndHi<., 2S (1909). Xo. I J. pp. 723, 72'/). — A note is given on a paper presented 

 at the International Congress of Applied Chemistry at London, in which ex- 

 periments with calcium nitrate and calcium cyanamid carried on by the Swedish 

 Moor Culture Society at Flahult since 1904 are summarized (E. S. K., 20, p. 

 319: 21, p. 121). 



The importance of nitrogen fixation from the standpoint of technical 

 chemistry (Dctit. Landw. Presse, 36 (1909), No. 56, p. 60S, dgm. i).— This is 

 a brief account containing a diagram showing the numerous applications of 

 nitric acid in agricuUure and Industry. 



Nitrated limestone of North Caucasus, M. Glasenapp (Rigaschc Indus. Ztg., 

 8.') U909). p. 2; EiKjrai.s. 2', (1909). Xo. 22, pp. 600, 60 1; ahs. in Clinn. Ztg., 33 

 (1909), Ao. 61, Rcpcrt., p. 279). — It is reported that samples of calcareous ma- 

 terial were found in this region which contained from 9.7 to 47.8 per cent of 

 nitrate of potash. Attention is especially called to the value of this material 

 for the manufac^ture of calcium cyanamid. 



Notes on nitrate of soda, J. C. de Ruijter de Wildt (Cultura, 21 (1909), No. 

 252-253, pp. ^77-.'/81). — The author calls attention to the importance of the 

 high potash content often found In nitrate of soda. Analyses of 49 samples 

 are given in which the percentage of potash ranged from 0.5 to 5.6, 34 samples 

 having over 2 per cent. 



Ammonia and nitrate in potash deposits, W. Biltz and E. Marcus (Ztsclir. 

 Anorgan. Chem., 62 (1909), No. 3, pp. 183-202, pis. 2, figs. 5; Kali, 1909, pp. 

 189-19.1,; al)S. in Chem. Ztg., 33 (1909), No. 81, Repert., p. 358 ) .—Using the 

 ordinary colorimetric method, the authors found in 10 gm. of salt from Stassfurt 

 and Vieueuburg deposits an average of 0.016 mg. of ammonia, much less than is 

 found in sea water at the present time. No nitrites were found in the Stassfurt 

 salts, but considerable amounts of nitrate were shown to be present by the 

 method of reduction with sodium amalgam. The nitrate was strongly localized 

 in the middle layers of saline clay. The authors consider this nitrate to be an 

 evidence of former organic life. 



The occurrence of potash salts in northern Chile, F. Setz, F. Goldenberg, 

 and J. Torres (Ahs. in Chem. Ztg., 33 (1909), No. 61, Repert., p. 279).— The 

 occurrence of salt deposits near Iquique in North Chile, which contain 3 to 4 

 per cent of potassium chlorid, is reported. 



The discovery of deposits of potash salts in Upper Alsace, L. Grandeau 

 (Jour. Agr. I'rut., n. xrr., 17 (1909), No. 2',, pp. 7.'/7, 7//S; 18 (1909), No. 26, pp. 

 11, 12). — Important deposits recently discovered near Wittelsheim are briefly 

 described. 



Soil potash, G. S. Fraps (Abs. in Jour. Soc. Chem. Indu.'^., 28 (1909), No. 13, 

 pp. 721, 722). — This is an abstract of a paper read at the International Con- 

 gress of Applied Chemistry at London, reix)rting a study of the solubility of 

 the potash in various minerals, such as nephelite, leucite, glauconite, biotite, 

 microcline, orthoclase, and muscovite. 



Wide variation in solul)ility in strong acids and other solvents was observed. 

 Potash absorbed by zeolites was found to be readily soluble iu tiftli-uormal 



