MASSACHUSETTS STATE 



Agricultural ExpEpEtiT Stjition 



BULx^ETiisr :^^o• s. 



AUGUST, L'^S3. 



FERTILIZER ANALYSES. 



The valuation of Coimmkrcial Fertimzers is based on the market 

 vahie of their essential constituents. The market reports- of New 

 York and Boston, — aside from consultations with leading manufact- 

 urers of fertilizers, furnish the necessary information. The subse- 

 quent statements of trade values adopted in the bulletins are obtained 

 by taking the average New York and Boston wholesale quotations of 

 the six months preceding March 1st, 1883, and increasing them by 

 20 per cent, to cover expenses for storage, sales, etc. Tiie prices 

 stated in connection with analyses of commercial fertilizers refer 

 therefore to their cost, per ton of 2000 lbs., on board of car or l)oat. 



Crude Stock for the manufacture of fertilizers, and refuse mate- 

 rials of various descriptions, sent to the station for examination, are 

 valued with reference to the market prices of their principal constit- 

 uents, taking into consideration at the same time tlieir general fitness 

 for speedy action. The general physical condition of these substances 

 enters as an important factor in their valuation. The morluuik-ai 

 condition of any fertilizing material, simple or compound, deserves 



