428 EXPERIMENT STATION RECORD. 



A special method of applying fertilizers by diffusion, A. IIkbert and G. Truf- 

 faut {Bid. Soc. ('him. Paris, .1. ser., 10 (1898), No. 14, pp. 651-655).— The method tested 

 by the author consists in mixing the soluble fertilizing materials with variable 

 amounts of inert substances, such as kaolin, or clay, and pressing the mixture into 

 pellets, which are buried in the soil either without an envelope or wrapped in differ- 

 ent numbers of layers of metallic foil. The results indicate that by this method the 

 rate of diffusion of the fertilizing material may be controlled. 



On the control of fertilizers during 1897, M. Weiruli, (Contribution from 

 Alnarp laboratory IX; Tidskr. Landtman, 19 (189S), No. 5, pp. 75-78). 



Tabulated analyses of commercial fertilizers, T. J. Edge and W. Freak 

 (Pennsylvania Dept. Ayr. Bui. 37, pp.40). — This bulletin gives the text of the State 

 fertilizer law, notes on valuation, and tabulated analyses and valuations of 588 sam- 

 ples of fertilizing materials inspected during the period from January 1 to August 

 1, 1898. 



Analyses of commercial fertilizers, B. W. Kilgore et al. (Mississippi Sta. Spec. 

 Bui. 40, pp. 27). — This bulletin reports analyses and valuations of 176 samples of 

 fertilizing materials inspected by the State chemist during the season of 1897-98, 

 introduced by explanations of terms used in stating the results of analyses, notes 

 on the valuation of fertilizers, and the text of the State fertilizer law. 



Analyses of fertilizers, C. A. Goessmann (Massachusetts Hatch Sta. Bui. 51, pp. 

 12). — Trade values of fertilizing ingredients in 1897 and tabulated analyses of 94 

 samples of fertilizing materials, including muriate and sulphate of potash, ashes, 

 sulphate of ammonia, ground tobacco stems, cotton-seed meal, bone, ground lish, 

 whalebone scrapings, muck, barnyard manure, and mixed fertilizers. 



Analyses of fertilizers, C. A. Goessmann (Massachusetts Hatch Sta. Bui. 54, pp. 24, 

 pi. 1). — This bulletin gives a schedule of trade values of fertilizing ingredients in 

 raw materials and chemicals in Massachusetts for 1898 and tabulated analyses of 166 

 samples of fertilizing materials, including Avood ashes, lime-kiln ashes, ashes from 

 garbage crematories, phosphatic slag, blcachery refuse, meat meal, blood and bone, 

 tankage and ground hone, cotton-seed meal, tobacco refuse, wool waste, "teopik" 

 fiber, mixed feed, broom-corn seed, acid phosphates, nitrate of soda, muriate of 

 potash, sulphate of potash, and mixed fertilizers. 



FIELD CEOPS. 



The effect of certain methods of soil treatment upon the corn 

 crop, T. L. Lyon (Nebraska Sta. Bui. 54, pp. 77-89, map 1). — This bulletin 

 discusses the moisture conditions of the State, gives a geological classi- 

 fication of the soils of Nebraska, and reports the results of experiments 

 on subsoiling, fall and spring plowing, deep and shallow plowing, and 

 subsurface packing for corn. Comparisons were made of listing and 

 check-rowing the crop, and giving deep and shallow cultivation. 



Experiments in subsoiling have been carried on for several years and 

 some of the results have been previously reported (E. S. R,, 7, p. 847). 

 The results obtained at the station on a loam containing alkali and 

 underlaid with a compact subsoil showed that subsoiling increased the 

 yield in most cases, but when the season was very wet spring subsoiling 

 failed to show any benefit. Subsoiling in western Nebraska, where the 

 subsoil was loose and porous, reduced the yield by about one-half. The 

 results of subsoiling obtained by farmers throughout the State are 

 reported. On clay subsoil 80 per cent of these trials were favorable to 

 subsoiling, but on a loam subsoil only 23 per cent. In 8 cases of the 59 



