44 On Plaister of Park. 



Query 9. What is the greatest product per acre of 

 grass, &c. you have known by the means of plaister ? 



Answer. I have had clover which would have made 

 two tuns of hay per acre the first crop, and that on 

 ground which I am certain without plaister would not 

 have produced one third of that quantity ; the second 

 crop nearly one tun, and reserved the third crop for seed. 



Query 10. Have you ever used it widi other manure, 

 and what sorts ? — or on ground previously dunged ? — 

 and the efi'ects, if any superior to plaister alone ? 



Answer. I have never mixed it vyith manure previous 

 to putting it on the ground, but generally used it on 

 ground litned or dunged for both J not long before, and 

 found its effects in a great degree proportionate to the 

 manure in the ground (whether limed or dunged) though 

 on ground exhausted and never manured, the effect 

 was considerable.* 



Query 11. Is there any difference between European 

 and American plaister ? 



Answer. 1 do not remember using any American be- 

 fore this year ; and as I had none of the other sown at 

 the same time, I caimot answer this query ; but it had 



* Nothing is better than plaister to mix with compost beds. 

 It forwards the putre' action, (without consuming them) of 

 the vegetable or animal matter composing them. Lime^ in 

 quantities, or hot, consumes and injures. I often differed 

 with my late friend \^'illiam West on this subject. He was 

 convinced he had begun with too much lime ; and lessened 

 the proportions. R. P. 



September 1810. 



