THE CHEMICAL COMPOSITION OF THE 
TOBACCO PLANT 
The tobacco plant when subjected to chemi- 
cal analysis is found to contain all or most of 
the following substances: 
Mineral Bases. Potash, Lime, Magnesia, 
Oxides of Iron and Manganese, Ammonia, 
Silica. 
Mineral Acids. Nitric, Hydrochloric, Sul- 
phuric and Phosphoric. 
Organic Base. Nicotine. 
Organic Acids. Malic, Citric, Acetic, Oxalic, 
Pectic and Ulmic. 
Other Organic Substances. Nicotianin, Green 
and Yellow Resin, Wax and Fat, Nitro- 
genous Substances and Cellulose. 
The substances which. differentiate tobacco 
from other plants and form its chief character- 
istics are Nicotianin, Nicotine and Malic Acid. 
The percentage in which the important sub- 
stances exist in tobacco is given below: 
Nicotine ......+-+22eeeee From 1 to 9% 
Malic and Citric Acids ....From 10 to 14% 
Oxalic Acid ..........6+- From 1 to 2% 
Resins, Oils and Fats ...... From 4'to 6% 
Pectic Acid ........-6+5. About 5% 
Cellulose .....-20-e ee eeee From 7 to 8% 
Albumenoids .......--+-++ About 25% 
ASH windei-a yo Mens REA ERE From 12 to 80% 
