Apncultural Chemistry — Sheep- Feeding and Manure. 287 



experimental crop grown by rape-cake, ammoniacal salt, and 

 superphosphate of" lime ; the latter were grown in the ordinary 

 course of farming from farm-yard dung and superphosphate of 

 lime. We have shown in a former paper in this Journal, the 

 effect of nitrogenous manures in increasing the per centage of 

 nitrogen in the white turnip, and the results given above, support 

 the supposition that the composition of the swede turnip is in- 

 fluenced in the same way. It is probable, however, that a part of 

 the result may be due to a difference in the stage of maturity, and 

 to the circumstances of storing in the two cases. Weight for 

 weight the oil-cake is seen to contain more than twice as much 

 nitrogen as either the oats or the clover ; the latter is the poorer 

 of the two in that respect, and also so far as dry organic matter is 

 concerned, and this latter moreover in the clover would probably 

 consist to a much greater extent of inert woody fibre, which would 

 pass through the animal unchanged, than in the oats. The clover, 

 however, contains a much larger per centage of mineral matter. 



Below are arranged side by side the total amount of fresh 

 food — of dry organic matter — of mineral matter— and of nitrogen 

 (the three latter calculated from the data provided in the last 

 Table), consumed in each pen during the entire period of 14 

 weeks ; also the total increase of live weight obtained at their 

 expense, from 5 sheep in the first 3 pens, and from 4 in the 4th 

 pen. 



SERIES I. 



Table 6. — Showing the Amount of Food or Constituents consumed, and of 



Increase produced. 



