882 EXPERIMENT STATION RECORD. 



(heteroptic colonies) depends not only on the presence of sufficient 

 clieniical elements in the soil, but also on the combinations and propor- 

 tion of these elements in the soil and in the minerals from wliich they 

 are derived, and on the power which the plants possess of utilizing 

 these fertilizing elements. 



Recent investigations on the nitric ferment, Vogel (JaTirh. deut. Landw. Get., 9 

 (1894), i)p. 28-30). — A brief review of the work of AViuogradsky, Stutzer, liubner, 

 A. Miiller, and Tacke. 



Bones, their manufacture in fertilizers and value in agriculture, Brauer 

 {Jahrb. daut. Landw. Ges., 9 {1894), pp. 30-34). — A popular article. 



The utilization of the nitrogen in green manures and in stable manure, J. 

 KtJim {Landbote, 16 {1S95), No. 18, pp. 155-157; No. 19, pp. 166-169).— See E. S. R., 6, 

 p. 396. 



Gulick's mineral fertilizer, P. Collier {Cult, and Country Gent., 1895, Apr. 4, p. 



Genuineness of basic slag, F. Sestini {Staz. Sper. Agr. Ital., S6 {1894), pp. 57-62; 

 aha. in Jour. Chem. Soc. London, 68 {1895), Mar,, p. 86). 



The phosphate deposits of North America, Woultmann (Jahri. deut. Landw. 

 Ges., 9 {1894), pp. 101-119). — A brief discussion of character and extent of deposits, 

 composition, market price, and exports of Cauada, South Carolina, and Florida 

 phosphates, with remarks on their importance to German agriculture. 



Fertilizer experiments of the German Agricultural Society, C. Normeb 

 (Landw. Wochenhl. Schlea. Hoist., 45 {1895), No. 8, pp. 127, 128). 



Tables for calculating fertilizer analyses, H. B. McDonnell et al (Maryland 

 Sfa. Bill. 29, Appendix, pp. 16). — Tables show (1) side by side the per cent of phos- 

 phoric acid and tri-calcium phosphate corresponding to the weight of magnesium 

 pyropliosphate calculated for 0.4 gm. substance; (2) phosphoric acid corresponding 

 to weight of magnesium pyrophosphate calculated for 0.4 and 0.5 gm. substance and 

 for each tenth of a milligram; (:5) potash, K2O, corresponding to weight of KPtClg 

 calculated for each milligram and for 1 gm. substance; (4) per cent of nitrogen cor- 

 responding to each tenth cubic centimeter of one tenth normal solution ; (.5) per 

 cent of ammonia, ISIH3, corresponding to each tenth cubic centimeter of one tenth 

 normal solution; and (6) the value per ton of fertilizers from percentage for prices 

 of 6, 3, and 2 cts. per pound. 



Fertilizer analyses of the North Carolina Fertilizer Control, H. B. Battlb 

 (North Carolina Sta. Special Buh. 22, pp. 10; 23, pp. 12). — Tabulated analyses of 

 samples of fertilizers accompanied by the usual explanatory notes. 



Fertilizer inspection in Rhode Island, H. J. Wheeler and B. L. Hartwell 

 (Rhode Lsland Sta. Bui. 30, pp. 59-65). — Tabulated analj-ses and valuations of 27 sam- 

 ples of fertilizers; a table giving statistics of fertilizer inspection during 1894 and 

 agreement of actual and guaranteed composition; and notes on valuation. 



Report of analyses of fertilizers and feeding stuffs made under the act of 

 1893 {Jour. [British] Board. Agr., 1 (1895), No. 3, pp. 276, 577).— Four himdred and 

 forty-four samples were analyzed during 1894, 317 being of fertilizers and 127 of 

 feediug stulis. 



Analyses of fertilizing materials, J. L. Hills and B. O. White ( Vermont Sta. 

 Rpt. 1893, pp. 21, 22). — Analyses of 19 samples of wood ashes, 3 of muck, 1 of tankage, 

 and 2 of a mixed fertilizer are tabulated. 



Analyses of fertilizers licensed for sale in the State of Vermont in the year 

 1893, J. L. Hills {Vermont Sta. Bpt. 1893, pp. 17-19).— An abstract of Bulletin 35 of 

 the station (E. S. R., 5, p. 164). 



