302 OF CHOPS USUALLY CULTIVATED. 



the produce of one acre of which, served to support nine 

 milch-cows for a fortnight ; after which the carrots were 

 taken up with the plough ; the remainder of the tops were 

 cut quite close to the body before housing. 



Mr John Shirreffhas made an interesting experiment* 

 on a small scale, to ascertain, whether carrots are deterio- 

 rated, or otherwise, by cutting off their tops in summer, 

 and converting them into hay. 

 Weight of the roots of the carrots, grown on a small piece 



of ground, drawn and weighed on the 30th lb. oz. 



November, 1810, 16 4 



Ditto of the leaves, ... 80 



24 4 

 Ditto of the leaves cut on the 7th of August, 7 8 



Total, 31 12 



Weight of the roots and leaves of carrots grown on an 



equal extent of land, and of similar quality, drawn and 



weighed on the 30th of November, lb. oz. 



1810, 46 2 



Weight of the leaves alone, 13 12 



Weight of the roots alone, 32 6 



Thus it appears, that the roots alone of the carrots, the 

 leaves of which were not cut till they were drawn in No- 

 vember, amount to a greater weight, than both the leaves 

 and the roots of the carrots that were trimmed over on the 

 7th August, and that the difference on the whole was nearly 

 50 per cent, on the one produce, and to 30 per cent, on the 

 other. This agrees with the idea, that the sap prepared by 

 the leaves, adds size to the roots. 



It is also proper to observe, that the weight of root, 



