92 



HATCH EXPERIMENT STATION. 



[Jan. 



Four hundred and forty-nine samples of fertilizers have 

 thus far been collected in the general markets by experienced 

 assistants in the station. 



Three hundred and seventy-one samples were analyzed 

 at the close of November, 1901, representing 230 distinct 

 brands of fertilizer. These analyses were published in two 

 bulletins of the Hatch Experiment Station of the Massa- 

 chusetts Agricultural College: No. 75, July; and No. 77, 

 November, 1901. 



As in previous years, the samples of licensed fertilizers 

 which have not been already analyzed, together with other 

 samples that may be collected, will be analyzed for publica- 

 tion in our March bulletin, 1902. (This includes several 

 samples forwarded by manufacturers at the inspector's re- 

 quest, which were not found in the general markets by our 

 collectors. All such samples are certified by the manu- 

 facturers as being an impartial representative of the brands 

 in question.) 



For the readers' benefit, the following abstract of the 

 results of our analysis is here inserted : — 



1900. 1901 



(a) Where three essential elements of plant food were guaranteed : - 

 Number with three elements equal to or above the highest guarantee, 

 Number with two elements above the highest guarantee, 

 Number with one element above the highest guarantee, 

 Number with three elements between the lowest and highest guarantee, 

 Number with two elements between the lowest and highest guarantee, 

 Number with one element between the lowest and highest guarantee, 

 Number with three elements below the lowest guarantee, . 

 Number with two elements below the lowest guarantee, 

 Number with one element below the lowest guarantee, 



(6) Where two essential elements of plant food were guaranteed : — 

 Number with two elements above the highest guarantee, 

 Number with one element above the highest guarantee, 

 Number with two elements between the lowest and highest guarantee, 

 Number with one element between the lowest and highest guarantee, 

 Number with two elements below the lowest guarantee, 

 Number with one element below the lowest guarantee, 



(c) Where one essential element of plant food was guaranteed : — 



Number above the highest guarantee, 



Number between lowest and highest guarantee 



Number below lowest guarantee, 



15 

 24 

 85 

 118 

 92 

 43* 

 1 

 11 

 50 



5 

 20 

 19 



6 



20 



15 



9 



10 



7 

 16 

 51 

 142 

 91 

 39 



7 



12 

 24 

 14 



2 

 14 



7 



18 



9 



