190 



TOBACCO. 



distilling would tend to raise the specific gravity. To 

 remedy this, slaked lime, or preferably potassic hydrate, 

 was added before redistilling, but considering that from 

 one to three per cent, of ammoniacal salt is contained in 

 the original tumbeki, it is probable that some might still 

 remain and by the action of the fixed alkali furnish a 

 trace of free ammonia which would lower the specific 

 gravity, and thus apparently raise the percentage of 

 alcohol. As far as we can judge basic acetate of lead does 

 not seem to remove fermentable matter from infusion of 

 tumbeki. 



" Ash. — The following bases and acids were uniformly 

 found in the ashes : — Sodium, potassium, lithium, magne- 

 sium, calcium, iron, aluminium, silica, chlorine, phosphoric 

 acid, sulphuric acid, carbonic acid. 



General Table of Results. 



