392 EXPERIMENT STATION RECORD. 



ingredients; a list of fertilizers licensed for sale in ^Maryland for the year ending 

 January 31, 1897; and tabulated analyses and valuations of 390 samples of fertilizers 

 examined during the period from March to .July, 189(). 



Official inspection of commercial fertilizers and general chemical -work in 

 1895, C. A. GOESSMAXN (Massachusetts Hatch Sta. Jipt. 1S95, pp. 313-328).— K brief 

 account is given of the work of fertilizer inspection and of the general work in the 

 laboratory of the chemical division of the station, accompanied by a list of the fer- 

 tilizer manufacturers complying with inspection laws in the .State, and tabulated 

 analyses of 14 samples of ashes from a crematory furnace at Lowell, Massachusetts. 



Compilation of analyses of fertilizing materials, H. U. Haskins {Massachusetts 

 Hatch Sta. Upt. 1S95. pp. 3JS-345). — Tables show the composition (maximum, mini- 

 mum, and average for the 3 essential ingredients) of fertilizing materials analyzed at 

 Amherst, Massachusetts, since 1868 in percentages and in pounds per ton. 



Analyses of fertilizers, C. A. Goessmaxx (Massachuseits Hatch Sta. Bui. 40, pp. 

 20). — A schedule of trade values is given, together with tabulated analyses of 189 

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

 tankage, bone, natural phosphates, cotton-seed meal, and mixed fertilizers. 



The royal Saxon agricultural experiment station at Mockern. Report of 

 the "work of the fertilizer control in 1895, < >. Bottcher {Siichs. landw. Ztscltr., 44 

 (1896), Xos. 34, pp. 415-418; 35, pp 429-43:2). 



FIELD CROPS. 



Observations on the gro-wth of maize continuously on the same 

 land for 8 years, E. H. Jenkins {Connecticuf State St((. Bpt. 1S!)5, pp. 

 21i>-:J2:j). — This is a contiuuation of work published in the ATiiiiial 

 Eeport of the station for 1894 (E. S. R., 7, p. 198). 



Beginning with 1890, 3 plats were annually fertilized as follows: 

 One with 10 cords per acre of cow manure, another with V.\h cords of 

 hog manure, and another with 1,700 lbs. of a commercial fertilizer; 

 a fourth received no fertilizer. Tabulated data are given for the gross 

 yield and the yield of dry matter for 1895, the relative yield of dry 

 matter for years, yield of food ingredients in 1895, the percentage 

 composition of the field-cured maize, kernels, and stover for each plat, 

 the loss or gain in soil fertility after 8 years' manuring and cropping 

 with Indian corn, and the yield of dry matter and shelled corn for 8 

 years, and composition of dry matter. 



The following table shows the results of 8 years' cropping and 

 manuring: 



Gain or 1o»s of soil fertility ]>er acre hij S years^ manuring and cropping tcith Indian corn. 



Treatment of soil. 



Cow Tnamire 



Hog inamue , 



Cheiiiic al fertilizers 

 No fertilizer 



Nitrosen. ^''S*"''1 ^"t^^^- 



Pounds. 

 +1,117.9 



Pounds. 

 + 788.1 



+ 1,870.8 ! +3,446.0 

 -1- 520.2 i + 971.6 

 — 316.6 I + 53.8 



Pound*. 

 'r799. 1 

 + 63.9 

 + 177.4 

 — 66.0 



Taking the plats in the order given in the table, the first receives 

 annually about 3,207 lbs., the second about 5,440 lbs., and the third 

 about 200 lbs. of organic matter. 



