The hygiene of transmissible diseases; their causation, modes of dissemination, and methods of prevention . Fig. 41.—Apparatus for generating formaldehyde from tablets of polymerizedformaldehyde : i, small form ; 2, for larger quantities ; A in each figure indicatesthe cup in which the tablets are placed. when the latter are freely exposed to its action ; that it quickly. Fk;. 42.—Modified Novy-Waite formaldehyde generator: A, retort for con-taining formalin; B, lamp for supplying heat; C, tube for conducting gas fromretort into room to be disinfected. destroys not only the Icss-rcsistant, non
The hygiene of transmissible diseases; their causation, modes of dissemination, and methods of prevention . Fig. 41.—Apparatus for generating formaldehyde from tablets of polymerizedformaldehyde : i, small form ; 2, for larger quantities ; A in each figure indicatesthe cup in which the tablets are placed. when the latter are freely exposed to its action ; that it quickly. Fk;. 42.—Modified Novy-Waite formaldehyde generator: A, retort for con-taining formalin; B, lamp for supplying heat; C, tube for conducting gas fromretort into room to be disinfected. destroys not only the Icss-rcsistant, non-sporc-formin^ patho- CHEMICAL AND PHYSICAL PROPHYLACTIC MEASURES. 26/ genie bacteria, but the more highly-resistant spore-formersand their spores as well; that to accomplish this end theremust be a definite relation between the gas used and the spaceto be disinfected; and that the space shall be so closed thatthis relation may be maintained for a definite length of time. Its powers of penetration cannot be relied upon, and whenused in rooms, hospital wards, etc., all articles, such as mat-tresses, pillows, clothing in chests, closets, trunks, etc., hadbetter be subsequently subjected to disinfection by streamingsteam. The methods thus far tested for the generation of this gasthat have shown themselves to be least trustworthy are thosein which methyl alcohol is
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Keywords: ., bookcentury1800, bookdecade1890, booksubject, booksubjectdiseases
