256 



more valuable, for the reason that corn meal contains only one- 

 half as much phosphoric acid, one-third as much potash, and one- 

 third as much nitrogen as does cotton-seed meal. This becomes an 

 imiDortant matter when we consider the field work as well as our 

 feeding." 



NEW JERSEY. 



New Jersey State and Agricultural College Experiment Stations. 

 Location, New Brunswick. Director, Merrill E. Gates, LL. D. 



BULLETINS Nos. 56 AND 59, JULY 15 AND SEPTEMBER 23, 1889. 



Analyses of commercial fertilizers, E. B. Voorhees, M. A. 

 (pp. 2-15, 2-21). — These bulletins contain the chemical analysis and 

 calculated commercial valuation per ton of samples representing 191 

 brands of complete fertilizers; Bulletin No. 56, including 73 and 

 Bulletin No. 59, 118 brands. 



Fertilizer inspection. — Samples of the brands sold in each county 

 are obtained by an inspector located in that county. Five hundred 

 and fifty samples were received in 1889, representing over 60 manu- 

 facturers, and including 191 different brands of complete fertilizers 

 and a large number of samples of ground bone, dissolved bone, and 

 miscellaneous fertilizing materials. The total number of brands 

 sent in by the inspectors for 1888 and 1889 is as follows : 



The increase of forty samples in total number, and the proportion- 

 ately larger number in 1889 of ground bone, dissolved bone, super- 

 phosphates, potash, and other " incomplete " fertilizers, indicate that 

 for these brands inspection has been much closer, or that their value 

 is recognized and their use becoming more general. 



C]i€7nical analysis of fertilisers. — " This includes tests for the three 

 forms of nitrogen, viz, as nitrates, as ammonia salts, and as organic 

 matter, and a quantitative determination of each M'hen found. In all 

 cases the total, soluble, reverted, and insoluble phosphoric acid are 

 determined. Potash and chlorine determinations are made in each 

 samj)le, and the potash found in excess of that needed to form muriate 

 of ]3otash with the chlorine present is credited to the manufacturer 

 as sulphate of potash. This complete examination of each sample is 

 of value in furnishing information regarding the kind and quality 

 of the materials used in mixed fertilizers.'' 



Fertiliser guarantees. — "The guaranteed analysis of each brand 

 was in most cases secured from the pamphlets of the manufacturer. 

 Wherever these could not be obtained tho.se reported by the inspectors 



