36 On Plaister of Paris. 



Qiiery 5. Have you repeated the application of it 

 with or without ploughing? — in what manner?— at 

 what intervals ? — and with what effect •? 



Answer, I have repeated it the sevendi year after three 

 crops of clover, one of wheat, one of corn, and one of 

 oats, with which clover was sown. The effect nearly 

 the same as at first. I have this spring repeated two 

 bushels per acre on the same ground, without plough- 

 ing, on clover which had been mowed two successive 

 years, but my expectation was not answered. 



N. B. This ground, has been twice manured with 

 barn yard dung ; once with corn, and once on the grass, 

 since the plaister was first applied. 



Query 6. Do you find that it renders the earth sterile 

 after its useful eftects are gone ? 



Answer, On the contrary, the lands on which I have 

 first used the plaister, though then in the state mention- 

 ed in answer to the 2 Query, have since regularly yield- 

 ed excellent crops of grass, grain, potatoes, com 8cc. part 

 of which never has had any other manure, at least for 

 twelve years. 



Query 7. To what products can it be best applied ? 

 —grain, and what kinds? — gi'asses, and what kinds? 



Answer. I have found considerable advantage from 

 the plaister sown with oats in very small quantity, L e. 

 as much as would adhere to the wet seed. Applied to 

 corn in the same way, it has an admirable effect ; indeed 

 with me, equal to three or four times the quantity sown 

 on the corn after it comes up. 



I have sown it with barley and clover, at the rate of 

 three bushels per acre at different times. The clover 

 was always very fine, but I cannot say that the barley 



