i 



while one plat received none. The fertilizer was applied broadcast 

 early in the spring, and subsequently incorporated in the soil b}- 

 means of a cultivator. The plats were otherwise treated alike to 

 secure a good mechanical condition of the soil, and to keep off the 

 weeds. 



FERTILIZERS APPLIED. 



Plat I received annually forty-five pounds of dissolved boueblack 

 containing from 10 to 12 per cent, of soluble phosphoric acid, and 

 fifteen pounds of potash nitre (saltpeter) . 



Plat II received annually fifteen pounds of potash nitre, and thirty 

 pounds of Kieserit (sulphate of magnesium) . 



Plat III received annually forty-five pounds of dissolved bone- 

 black, fifteen pounds of potash nitre, and thirty pounds of Kieserit. 



Plat IV nothing applied. 



Plat V received anuuall}' fort3'-five pounds of dissolved boueblack, 

 eighteen pounds nitrate of soda (Chili saltpeter), and fifteen pounds 

 of muriate of potash. 



Nitrogen was applied in form of niti'ic acid to secure a uniform 

 action of that element. 



Well matured fruits were in every instance secured for the tests. 

 They were collected July 18th, 1883, and examined without delay. 



One hundred parts by weight of the berries contained : 



I II III IV V 



An examination of the composition of the berries showed the high- 

 est color, the largest amount of vegetable matter, and the largest 

 amount of mineral constituents in the fruits from plat three ; the 

 fruits from plat five rank next in regard to these qualities, yet 

 exceed in sugar by more than one per cent. The fruits from plat 

 four (without fertilizer), rank lowest in quality. The examination 

 of the organic constituents of the berries will be repeated during the 

 coming "seeson, when more details will be published. 



