148 



MANURES. 



treatment will give remunerating returns — belong 

 drifting sands, naked rocks, and marshes so situated 

 as to preclude the feasibility of draining. That coming 

 ages may reclaim vast extents, which now appear 

 worthless, is possible. The wants of our race, how- 

 ever great they may become, will be supplied. Our 

 present business is with that great class of lands, 

 which are held on the condition that they will return 

 just about in proportion as they receive. 



RELATIONS OF CROPS TO MANURE. 



276. Below are analyses of three soils, by Professor 

 Johnstone — one fertile without manure ; another fer- 

 tile with manure ; and a third hopelessly barren. 



