Cra 
On Plaister of Paris. 3] 
part of which had buckwheat in the preceding year;* 
I left a row of corn unplaistered, which run across the 
fresh broke up land and the buckwheat ground : in the 
latter I could perceive no effect whatever that the plais- 
ter had on it, being a very light crop; in the fresh broke 
up land the crop was very good, and more than double 
the quantity where it was plaistered than in the row 
that was not. The other instance was in a fine mellow 
rich piece of land, that had been well manured the year 
before ; from which I had taken a good crop of potatoes 
and pumpkins. I left three rows unplaistered, but could 
perceive no difference whatever between them and the 
others, where I had sowed at the rate of two bushels 
per acre. The piece was sowed the spring following 
with barley and clover seed, and the plaister that had 
been put upon the corn without any advantage, had a 
great effect upon the clover, which was much better than 
where the three rows were omitted. This piece had 
been well limed before the pumpkins and potatoes were 
planted. The effects of the plaister here, as well as in 
many other instances which I have known where it has 
* Many farmers are of opinion, that Indian corn never does 
well immediately after buckwheat. I have never considered 
buckwheat an exhauster, as it isa bastard legume and a good 
covering crop. R. P. 
oP 
I have changed my opinion, by more attentively pursuing 
experiments on buckwheat. I think it is a great exhauster, 
when permitted to ripen its seed. 
RP, 
September, 1810¢ 
