[ *!3 ] 



fet out at about ten inches plant Yrom plant. The 

 crop is reaped in Auguft, and leaves the land in 

 fufficient tilth for any crop of other grain or corn 

 that may be chofen to follow it: the medium pro- 

 duce three quarters per acre, and the medium price 

 i os. per bulhel. Muftard never follows muftard; 

 but may be fown on the fame land again in the third 

 year. The firft hoeing is worth 4s. the fecond and 

 third 3s. per acre. 



I never faw the marle-grafs you mention ; but 

 obferve, you affix the fame Latin name to it as you 

 did in my letter [Article xxxiv.] inferted in your 

 lafl volume — trifolium alpeftre, to what I there 

 called cow-grafs ; and which is, trifolium purpu- 

 reum pratenfe; and from the trial I there men- 

 tioned to you, appears to me a mod valuable fpe- 

 cies. The trifolium alpeftre is, I apprehend, the 

 real cow-grafs ; though the other is, at the fecd- 

 fhops, fold under that name. Your fociety there- 

 fore, if they have acquired any quantity of the feed 

 of the real alpeftre, which has been thought to be 

 particularly rare, will bring a very great acquisition 

 to agriculture in one of its mod effential points. 



Here common clover frequently, through the 

 accident of feafons, rather than quicknefs in crop- 

 ping with it, will fail. In Norfolk, where it has 

 P 2 ufually* 



