INFLUENCE ON THE HUMAN SYSTE^^:. 117 



will be pure water, and the remaining 12 parts 

 will be occupied by nicotin and the other con- 

 stituents already described, together with the fol- 

 lowing mineral bases, acids mineral and organic, 

 other organic bodies, and other mineral bodies : — 



{ Potash. 

 1 Lime. 

 Mineral J Magnesia, 

 bases. | Oxide of iron and 

 I of magnesia. 

 I, Ammonia. 



Mineral 

 acids. 



Nitric acid. 

 Hydrochloric acid. 

 Sulphuric acid. 

 Phosphoric acid. 



( Malic acid. 

 I Citric acid. 

 Organic J Acetic acid, 

 acids. I Oxalic acid. 

 I Pectic acid, 

 i, Ulmic acid. 



Other 

 organi( 

 bodies. 



Yellow rosin. 

 Green rosin. 

 • , Wax or fat. 

 °^S^°^^ Nitrogenised 

 I matters, 

 i, Cellulose. 



Other mineral bodies — silica and sand.* 



Other chemists answer also for albumen and 

 gluten in tobacco : indeed, without the latter it 

 would not be adapted for rolling into cigars, or 

 cutting into the long shreds of pipe-tobacco. 



It is evident from this list that the dainty 

 dish of " plug " within the sailor's jaw, has had 

 a very complicated cooking. Truly it is homceo- 

 pathically infinitesimal in its quantitative little 

 bits of this and little bits of that ; but still all 



* Fremy et Pelouze, ' Traite de Chimie generale,' tom. iv 

 p. 422, ed. 1855. 



