UPON VE GE TABLES. 



'55 



I have made fome experiments with the view to form 

 a comparatiA^e eftimate of the wholefome flimulating ef- 

 feds of camphor and of nitre upon plants put in water. 

 The refult of my experiments fiivcurs the idea, that 

 camphor is a more wholefome ftimulant than nitre. 

 Unlefs the dofe of this laft fubftance is managed with very 

 great care, it is apt to produce weaknefs, languor, and 

 death. Even in that hardy evergreen, our Broad-Leaved 

 laurel (Kalmia latifolia), 1 found that a few grains of nitre 

 produced, in a fhort time, not only a lofs of the green 

 colour, but an appearance, which I would compare to 

 that of fphacclus, or mortification, in animals. 



N«. XXVIII. 



Snppkmentnm Indicis Flora hancajlrienjis. Aiitlore 

 Henhico Muhlenberg. Communicated by Dr, 

 Barton. 



N. S. 

 roftratutti. 



