The Conclufion. 



3*3 



crop in September, they rarely thrive well, 

 unlcfs in a cool moid fummer, by reafon of 

 the too great perfpiration caufed by the fum- 

 mer's heat, which drys and hardens their 

 fibres before they arc full grown. 



Tho' we have from thefe Experiments, 

 and from common obfervation, many proofs 

 of the great expanfive force, with which the 

 fibrous roots of plants moot, yet the lefs 

 refinance thefe tender moots meet with, the 

 greater progrefs they will certainly make in. 

 equal times : And therefore one confidera- 

 blc ufe of fallowing and trenching ground, 

 and of mixing therewith fcveral forts of com. 

 poll, as Chalk, Lime, Marie, Mold, &c 

 is not only thereby to replenilh it with rich 

 manure, but alfo to loofen and mellow the 

 foil, not only that the air may the more 

 caftly penetrate to the roots, but alio that 

 the roots may the more readily make vigo- 

 rous moots. And the greater proportion the 

 furface of the roots bears to the furfacc of 

 the plants above ground, fo much the greater 

 quantity of nourifhment they will afford, 

 and confequently the plants will be the more 

 vi-orous, and better able to weather it our, 



againft unkindly feafons, than thole plants 

 ° whole 



