398 CULTIVATED VEGETABLES. 



Mr. Miller thinks the number of plants would 

 have amounted to two thousand. The ground 

 was a light blackish soil, upon a gravelly bot- 

 tom, and consequently a bad soil for wheat. 

 One half of the ground was well dunged, the 

 other half had no manure. There was, how- 

 ever, no difference discoverable in the vigour 

 or growth of the plants. It is evident, that 

 the expense and labour of setting in the 

 above manner by the hand, will render it 

 impracticable upon a large scale. A corre- 

 spondent of the Bath Society, therefore, 

 (Robert Bogle, esq. of Daldowin, near Glas- 

 gow,) to extend the practice, has proposed 

 the use of the harrow and roller until some 

 better implements be invented. This method 

 occurred to him from attending to the prac- 

 tice usual with farmers, of harrowing their 

 fields after the grain is sprung up. Upon in- 

 vestigating the principles upon which these 

 practices are founded, they said " that after 

 very heavy rains, succeeded by excessive dry 

 weather, the surface of their lands was apt 

 to be caked, the tender fibres of the young 

 roots were thereby prevented from pushing, 

 and of course the vegetation was greatly ob- 

 structed ; in such instances they found very 

 great benefit from harrowing and rolling. 



