[ 40 ] 



It appears from this experiment that the green ilems are 

 weightieft at the time potatoes come into bloflbm, (in this 

 experiment the weight of an acre of green ftems was then 

 equal to 12 tons and a half nearly) and that they become 

 gradually lighter, as the crop approaches nearer to maturity. 



Cows eat this forage very readily, as do horfes alfo ; but 

 it is not in general accounted a very nourifhing kind of 

 food. — It is eaten moft readily when in its moft fuccu- 

 lent ftate. 



Experiment Sixth. 



[To afcertain the proportional weight of a crop that 

 would be obtained from a field of. potatoes of this kind, if 

 taken up at different periods, one ftem marked x in the 

 foregoing diagram was taken up at each of the periods that 

 ihe nine ftems in the laft experiment were cut over, and 

 they were found to produce when weighed and numbered 

 as under refpe&ively : 



From this experiment it would fcem, that if the whole 

 crop had been taken up on the 2d of Auguft, it would have 

 yielded no more than three ounces and a half per ftem, 

 (at the rate of 125 bufhels per acre) and if let ftand till 

 the 5th of September, it would have yielded twenty-three 



per. 



