IV. CULTIVATION IN GENERAL. 



" Turnips in the row d, which stood farthest off from the 

 (t new ploughed land E, received so much benefit from 

 " it, as to grow twice as big as any of the more distant 

 " rows. The row c being a foot nearer to the new 

 " ploughed land, became twice as large as those in d, 

 " but the row b, which was next to the land E, grew 

 " much larger yet. F is a piece of hard whole ground, 

 *' of about two perch in length, and about two or three 

 " foot broad, lying betwixt those two lands, which had 

 " not been ploughed that year ; it was remarkable that, 

 " during the length of this interjacent hard ground, the 

 " rows bed were as small and yellow as any in the land. 

 " The Turnips in the row d } about three foot distant from 

 " the land , receiving a double increase, proves they 

 <f had as much nourishment from the land E as from the 

 " land A, wherein they stood, which nourishment was 

 " brought by less than half the number of roots of each 

 " of these Turnips. In their own land they must have 

 " extended a yard all round, else they could not have 

 " reached the land E, wherein it is probable these few 

 " roots went more than another yard, to give each tur- 

 " nip as much increase as all the roots had done in 

 " their own land. Except that it will hereafter appear, 

 " that the new nourishment taken at the extremities of 

 " the roots in the land , might enable the plants to send 

 " out more new roots in their own land, and receive 

 t( something more from thence. The row c being twice as 

 " big as the row d, must be supposed to extend twice as 

 " far ; and the row b, four times as far, in proportion as 

 " it was of a bulk quadruple to the row d." 



113. Thus, then, it is clear, that tillage amongst grow- 



