440 



Composition of the leaves of hemp, dried at 212°. 



Carbon 40.50 



Hydrogen 5.98 



Nitrogen 1*82 



Oxygen 29.70 



Ashes 22.00 



100.00 

 The ashes of the hemp plant were found to consist of 



Potash 7.48 



Soda 72 



Lime 42.05 



Magnesia 4.88 



Alumina 37 



Silica 6.75 



Phosphoric acid 3.22 



Sulphuric acid 1.10 



Chlorine 1.53 



Carbonic acid 31.90 



100.00 



Dressed hemp fibre was found to give but 1 .4 per cent, 

 of ashes, when dried at 212°. Its organic composition need 

 not be given, as it is identical with that of ordinary woody 

 fibre, which is well known. It therefore contains no ni- 

 trogen. 



The characteristic constituents of the hemp plant are 

 seen to be nitrogen and lime. In these it is peculiarly rich, 

 and with these it is the duty of the agriculturist abundantly 

 to supply it. 



When hemp is steeped in order to separate the fibrous 

 bark from the internal stem, it is known that the water dis- 

 solves certain substances out of the plants, and thereby ac- 

 quires narcotic properties. Dr. Kane evaporated a quantity 

 of the hemp liquor to dryness, and analyzed the extract so 



