centrnted phosphatic manures of frequent or copious occur¬ 
rence are, however, conspicuous for their absence. Hence 
the importation of fertilizers of this sort, lately commenced 
in several places, deserves the unanimous approval and 
support of all those who are interested in the welfare of the 
farming classes. With regard to potash manures, though 
many soils are still sufficiently rich in this nutrient, yet 
trials as to its efficacy on various soils should not be 
neglected. 
