Agricultural Chemistry — Sheep- Feed in rj and Manure. 329 



SERIES IV. 



Table 9. — Showing- the Total Amount of Food or Constituents consumed, 



and of Increase produced, in each Pen, during the Experimental Period. 



The comparative indications of this Table will be more con- 

 veniently studied when the results are arranged to an uniform 

 standard, as in those which shortly follow ; but, attention may 

 here be recalled to the enormous expenditure of food and its 

 constituents to obtain a comparatively small amount of market- 

 able produce, as shown in the aggregate result given at the foot 

 of the Table. It is seen that for the production of 546 J lbs. of 

 increased live- weight, there are consumed 1,562 lbs. of barley, 

 malt, or oil cake, and 26,380 lbs., or nearly 12 tons, of mangold 

 wurzel — together containing 4,547 lbs, of dry organic substance, 

 307i lbs. of mineral matter, and 107 lbs. of nitrogen. It may 

 be observed too that, on the supposition that the increase pro- 

 duced pretty constantly contained 3 per cent, of nitrogen, the 

 amount of this elemept stored up in the animal, in proportion to 



