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HOW TO GROW GOOD CLOVER. 



These three fields are situate on the Agricultural 

 College Farm, the substrata of which are forest marble 

 and great oolite, and 2 and 3 were absolutely adjoining 

 each other. How different, then, are the species of 

 wild plants in fields so close together, when out of 

 a list of sixty-four species only twenty-four, or a 

 little more than one-third, are common to all three 

 of the fields examined ; and yet we can safely affirm 

 that the aboriginal flora of any three fields of the 



