206 Dr. Henry's Modified Disinfecting Apparatus. 



by direction of some of the public authorities, had supplied 

 data for determining, not only the best vehicle of heat, and 

 the best construction of apparatus, but (what is of more im- 

 portance) had placed beyond doubt the efficacy of high tem- 

 peratures in desti'oying the contagion of cholera; ibr this 

 effect, though rendered extremely probable by experiments 

 on the infections of cow-pox and of scarlatina, still, it must 

 be remembered, rests only on analogy. The causes that 

 have delayed the investigation of these points will probably 

 be obviated by the enlarged powers recently given by Parlia- 

 ment to the executive government. But as applications are 

 constantly reaching me, from various quarters, respecting the 

 form of apparatus which I noxa recommend, I beg leave to 

 reply to them (and, by anticipation, to other similar in- 

 quiries) through the medium of your Journal. 



Having had no fresh experience to guide me to actual im- 

 provements, I may nevertheless venture to suggest an ap- 

 paratus, which appears to me better adapted than the one 

 figured in your Number for November, for cholera-hospitals, 



To the Flue- 



Door. 



S!tccim 



Steam 



&<>* 



Becej)iacle, ^ 



7 feet. '^ 



# 



Door. 



lazarettos, and stations where large quantities of articles are 

 intended to be disinfected. It may consist of two cylinders 

 (see the sketch), an inner and an outer one, the cheapest ma- 

 terial for which will probably be cast iron, five-eighths of an 

 inch thick. Between the two may be a space of two inches 



for 



