354 



TALKS ON MANU1IES. 



I. TABLES FOR CALCULATING THE EXHAUSTION AND EN- 

 RICHING OF SOILS. 



A. HARVEST PRODUCTS AND VARIOUS MANUFACTURED ARTICLES. 

 Average quantity of water, nitrogen, and total ash, and the different ingredi- 

 ents of the ash in 1000 Ibs. of fresh or air-dried substance. 



