114 Inproved Instrument for Venous Injection. 
Apr. XVIII.—NVotice of an improved instrument for Venous Injec- 
tion, with a figure—communicated for this Journal by Dr. J. 
Maunray, ina letter to the editor, dated Providence, Sept. 14, 1832. 
Remark by the Editor.—The annexed notice was’ accompanied 
by an interesting printed report on the Cholera, as it appeared in’ 
New York, up to the middle of July, signed by J. Mauran, Thomas 
H. Webb and Samuel Boyd Tobey. 
€ present communication, grew out of the observations of these 
medical gentlemen, during a visit which they made to New York, se 
the parpose of observing the malignant Cholera. 
A. Forcing pump. 
B. Glass air chamber. 
C. Flexible tube. 
D. Ivory connector. 
E. Silver inserting tube with stop 
cock. 
Drawn one fourth the size of the instrument. 
TO THE EDITOR. 
Sir—We were early persuaded that a part of the failure from the 
“ Venous Injections,” which have been resorted to for the promotion 
of reaction in aggravated cases of asphyxiated cholera, has arisen 
(under the circumstances) not so much from the nature of the ope- 
ration, as from the manner of its performance, through the imperfec- 
tions of the apparatus employed. ‘This opinion has been subse- 
quently fortified by the observations of Dr. Francis, of New York, 
in a very interesting communication to Dr. Read, of Savannah, op 
the absorbing topic, wherein hé states that “in the few autopsic €X- 
aminations of subjects after venous injections had been employed, 
great cerebral cs has bean found, and: aur within ube ts 
