20 ON BREEDING OR RAISING VEGETABLES. 



of bees, or such like insects, or placed out of the 

 danger of being otherwise promiscuously impreg- 

 nated. It is by a close attention to these laws 

 of nature, that so many valuable varieties of 

 pulse, grain, fruit, roots, and esculent vegeta- 

 bles, have of late been raised and obtained. 

 It must also be observed, that by frequently 

 propagating from seeds, carefully selected from 

 those plants, which possess the most desirable 

 qualities, even though there be no intended 

 crossing or mixing of farina to produce varie- 

 ty, the most valuable habits of any species, 

 may be improved and increased 5 and particu- 

 larly by their being naturalised, and enabled to 

 adapt themselves to flourish, in any peculiar soil 

 or climate. 



