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: 



