. Applied bacteriology; an introductory handbook for the use of students, medical officers of health, analysts and sanitarians. Bacteriology. 32 APPLIED BACTERIOLOGY The heat must be sufficient to keep the water in vigoroas ebullition, so that the steam issues freely from the top. In this way a uniform temperature of 100° C. is maintained in the apparatus. The steriliser is fitted with a wire basket or metal rack for the reception of test-tubes containing nutrient media. This apparatus is employed for sterilising media and apparatus which cannot be exposed to temperatures higher. Fig. 3.—Steam
. Applied bacteriology; an introductory handbook for the use of students, medical officers of health, analysts and sanitarians. Bacteriology. 32 APPLIED BACTERIOLOGY The heat must be sufficient to keep the water in vigoroas ebullition, so that the steam issues freely from the top. In this way a uniform temperature of 100° C. is maintained in the apparatus. The steriliser is fitted with a wire basket or metal rack for the reception of test-tubes containing nutrient media. This apparatus is employed for sterilising media and apparatus which cannot be exposed to temperatures higher. Fig. 3.—Steam Stekilisek. than that of boiling water (100° C). Glass and other utensils may be steamed for from one to two hours; but some nutrient materials are unable to withstand the temperature of 100° C. for any length of time. Thus nutrient gelatine loses its power of solidifying on pro- longed heating at the boiling temperature. Hence it is advisable to expose media containing gelatine to a current of steam for not more than fifteen minutes on three successive days. The heating on the first day destroys all. 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
