114 



Improved Instrument for Venous Injection. 



Art. XVIII.-^JVb/'fce of an improved insty-ument for Venous Injec- 

 tion,- ivith a figure — communicated for this Journal by Dr. J. 

 Mauran, in a 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. • 



The present communication, grew out of the observations of these 

 medical gentlemen, during a visit which they made to New York, for 

 the purpose of observing the malignant Cholera. 



A. 



B. Glass air chamber. 



C. Flexible tube. 



D. Ivory connector. 



E. Silver inserting tube with stop- 

 cock. 



Drawn bue fourth the size of the mstrument. 



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 mucb 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, on 

 the absorbing topic, wherein he states that " in the few autopsic ex- 

 aminations of subjects after venous injections had been employed, 

 great cerebral congestion has been found, and air within the heart, 



