ADVERTISEMENT. XUI 



culative theoriftj and to the theorift only would 

 1 recommend the putting I'uch methods into 

 pradice; all gardeners, farmers, and cultivators, 

 of whatever name, defcription, or denomination, 

 I would caution againft trying or putting into 

 practice any theoretical experiments or methods 

 whatever, which in any way tend to vitiate or 

 fpoil the adive juices of plants; but, on the 

 contrary, would recommend and advife them to 

 endeavour to feed their plants at all times vnih 

 wholefome nutritive food. For luppofing w^ater 

 to be impregnated with quick-filver, mer- 

 cury, or fuch-like, would the plants receive 

 fuch water as food? and if they did, would 

 their juices be by it fo changed as to become 

 poifonous to the infects? and if they were, would 

 it not be dangerous for man to eat the fruit 

 which derived its nourifhment from the juices 

 thus vitiated? 



Infedls are endowed with certain and deter- 

 minate powers and inclinations, imprefled on 

 them by the almighty Creator; by which thev 

 feem arbitrarily, and without their own know- 

 ledge or confcioufnefs, direded and impelled to 

 the performance of thofe various operations 

 which they execute with fuch unremitting in- 

 duftry and art. They have a natural difpofition 

 or fagacity, by virtue whereof they are enabled 



to 



