DIFFICULTY OF SELECTION. 



attending it, for it is difficult, in many instances 

 with regard to " Exotics," to affirm a priori, what 

 may thrive in our neighbourhood, since a great 

 many from New Holland, are known to resist our 

 temperature, and prosper in spite of isothermal 

 doctrines. Generally speaking, all the vegetable 

 productions of the equatorial zone, (tropics), not 

 growing above the altitude of 5000 feet, may be 

 expected to succeed here, and of this description 

 chiefly are those comprised in the lists. 



Having these materials in our possession, it would 

 not be difficult to elaborate them ; that is, to pre- 

 serve, propagate, and convert them to use to the best 

 possible advantage, so as to make them produce the 

 most valuable exports, articles of home consumption 

 and manufacture, and thus give a new life to the 

 industry and commerce of this country ; and though 

 little is known of some of them, both medicinal and 

 those used in the arts, yet a most ample field is 

 presented to us in India to unfold the extent of 

 their power and utility. 



To ensure success, I beg to submit the necessity 

 of making the introduction of useful plants here 

 the subject of an experiment, to be conducted on a 

 magnificent scale, equal to the vast importance of 



