the most serious consideration of farmers, when articles of a similar 

 chemical character are offered for their choice. The degree of pulver- 

 ization controls almost without exception, under similar conditroiis, 

 the rate of solubility, and thus more or less rapid diffusion of the 

 diff"ercnt articles of plant food throughout the soil. 



Trade Values for 1883. 



Nitrogen in nitrates, . . - . 



ammonia salts, 

 •' Peruvian guanos, fine steamed bone, 



dried and fine ground blood, meat, 

 fish, superphosphates and special 

 manures, . . . . 



Phosphoric acid soluble in water, 



" " reverted and in Peruvian guano. 



" insoluble, in fine bone, lish- 

 guano and superphosphates.-' 

 Totash in high grade sulphate, 



" low grade sulphate and kianite. 



muriate or potassium chloride, - 



)s1 per U) 



20 cts. 

 20 " 



CANADA WOOD ASHES. (11 — 17). 



11. Sent on from Sunderland, Mass. 



12. Sent on from Sunderland, Mass. 



13. Sent on from North Amherst, Mass. 



14. Collected at the R. K. depot in Amherst, b}' State Inspector. 



15. Sent on from North Amherst, Mass. 



10. Collected of D. A. Horton, Northampton, Mass., by State 



Inspector. 



17. White Ash, sent on from South Deerfield, Mass. 



11 12 13 14 15 16 17 



Samples 1, 2, 3, 4, o, 6, represent the average quality of Canada 

 wood ashes sold in our section of the Connecticut riv(!r valley, at 

 from 33 to 3;') cents pei' biisliel. S:iniple 7 was of an exceptional 



