MANURES. 



183 



being most lasting and least stimulating, and sheep manure 

 being most stimulating and soonest expended. 



1st, excrements of horned cattle. 



2d, " of swine. 



3d, " of horses. 



4th, " of sheep. 



Tlie value of the excrements of the above named animals, 

 particularly swine, is affected very much by the quality of their 

 food. 



The following figures, taken from the latest edition of Stock- 

 hardt's Chemical Field Lectures, show the constituents of these 

 different excrements. The figures are based xipon the weight 

 of the excrements and not upon the amount, as we usually con- 

 sider them. Tliis is important to be remembered in this and 

 subsequent tables, as there is a great difference between the 

 weight of a cord of cow manure and a cord of horse manure. 

 The figures of course are only approximate, although based 

 upon actual experiments. 



One tliousand pounds of fresh excrements contain : — 



