. Applied bacteriology; an introductory handbook for the use of students, medical officers of health, analysts and sanitarians. Bacteriology. THE STEAM STERILISER 33 the bacteria present and most of the spores, but some of the latter remain and develop by the next day into adult organ- isms; these are killed on heating the second time; any organ- isms that remain are finally destroyed by the third heating. The steam steriliser is also conveniently employed in hasten- ing the filtration of nutrient agar, in preference to the use of the hot-water funnel. For this purpose the flask to receive the
. Applied bacteriology; an introductory handbook for the use of students, medical officers of health, analysts and sanitarians. Bacteriology. THE STEAM STERILISER 33 the bacteria present and most of the spores, but some of the latter remain and develop by the next day into adult organ- isms; these are killed on heating the second time; any organ- isms that remain are finally destroyed by the third heating. The steam steriliser is also conveniently employed in hasten- ing the filtration of nutrient agar, in preference to the use of the hot-water funnel. For this purpose the flask to receive the filtrate, together with the funnel containing the medium on the filter-paper, is wholly immersed in the Fig. 4.—Pressuee Stekilisbb, The High-pressure Steam Steriliser.—High-pressure steam applied by means of an autoclave acts with greater rapidity than ordinary steam. Owing to the costly nature of high- pressure digesters, their employment is not to be recom- mended for ordinary use, as no advantage accrues from it. In certain cases, however, as in the sterilisation of soil, the high-pressure digester may be conveniently used. G-lobig {Zeitsch. f. Hygiene, iii., p. 332, 1887) found that certain spores were able to resist ordinary steaming for 3. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Pearmain, Thomas Hames; Moor, Cresacre George. London, Baillie?re, Tindall and Cox
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectbacteri, bookyear1898
