On Plaister of Paris. — 
gypsum, while the gravelly soil was so much benefited 
by it, as to furnish at least double its usual quantity of 
red clover. Some lots upon which it was spread three 
years ago, have not been manured since that time, and 
have already been mown twice this summer, and now ex- 
hibit the appearance of an abundant third crop. They 
were mown also three times last summer, but never 
pastured. I have never spread the gypsum but early 
in the spring, though I make no doubt but sown ina 
Wet season, it would be serviceable at any time. For 
two ycars I tried this manure upon Indian corn; I first 
covered it in the hill with the corn, and the next year I. 
applied it at the time of moulding, the quantity to each 
hill about a table spoonful. In both instances the corn 
assuiied and retained a deeper green during the whole 
summer, than what grew around it upon land of the same 
quality. I think likewise that it vegetated quicker, bué 
I could not perceive that the quantity of grain was increas- 
ed by this application.* 'To farmers therefore who are 
* Dr. W.seems to carry the opinion, on this point, farther 
than Mr. Curwen. There may in some seasons be some 
foundation ‘or it; but I think the ears are, in general, evident- 
ly increased by the plaister, though it may at times operate 
jn greater proportion on the plant. Any other manure will 
do the same thing, according to the season. We have some- 
times a great proiusion of straw, and of course small ears of 
wheat, on our dunged, or new land. If land be too highly 
dunged, or naturally too rich, this is constantly the case. It 
depends therefore on the strength of the ground, or qui ntit 
_ of manure, as well as season, whether we shall obtain graz 
| plant in proper or undue proportion. It would be: well to 
