Substitute for Wolfe's Apparatus. 
25 
ART. VI.— A SUBSTITUTE FOR WOLFE'S APPARATUS. 
By P. T Tyson, Baltimore. 
Most persons who have had frequent occasion for Wolfe's 
Apparatus, and the substitutes proposed for it, complain of 
the trouble and inconvenience attending the use of them. 
The annexed sketch represents a contrivance which seems 
better adapted to the use of the chemist and pharmaceutist 
in most cases, than those generally used. 
The apothecary will find it well adapted to the manufac- 
ture of hydrocyanic acid, when this is made by treating the 
bicyanide of mercury with hydro-sulphuric acid. 
The vessel A may be a bottle of any convenient size. B 
is the beak of a broken retort, the large end of which should 
be of such dimensions as merely to permit it to be introduced 
through the mouth of the bottle A , it should reach nearly to the 
Vol. I No. I. S 
