. Clinical bacteriology and haematology for practitioners. Bacteriology; Hematology. 22 CLINICAL BACTERIOLOGY AND HEMATOLOGY greatly hastens the process of cooling). The water and culture- tube cool very gradually, and most pathogenic organisms will give an excellent growth before this happens. The Dewar's flask should have a capacity of 600 and an internal diameter at the neck of i inch or so. It can be supported on a jam-pot with a layer of cotton-wool round the neck. I find it cools at the rate of about half or two-thirds of a degree per hour. The author once succeeded in making a diag
. Clinical bacteriology and haematology for practitioners. Bacteriology; Hematology. 22 CLINICAL BACTERIOLOGY AND HEMATOLOGY greatly hastens the process of cooling). The water and culture- tube cool very gradually, and most pathogenic organisms will give an excellent growth before this happens. The Dewar's flask should have a capacity of 600 and an internal diameter at the neck of i inch or so. It can be supported on a jam-pot with a layer of cotton-wool round the neck. I find it cools at the rate of about half or two-thirds of a degree per hour. The author once succeeded in making a diagnosis in a case of supposed diphtheria by the following method: The tube of medium was inoculated from the throat, and placed in a jam-pot. Fig. 12.—Dewar's Flask adapted for Use as Incubator. a, Culture-tube ; b, vacuum ; c, water; d, layer of oil ; e, cotton-wool round mouth of jar for support. which was partly filled with water at 37° C.; a thermometer was also inserted, and the whole placed near the fire. It was watched from time to time, and moved near the fire if the temperature showed signs of falling, and vice versa, until the proper position was found. Next morning there was an excellent growth, and the diagnosis was made with certainty. Lastly, the author has heard of a practitioner who was in the habit of incubating cultures at the body temperature by carrying them in an inner pocket during the day, and taking them to bed with him at night !* * Since the above was written an incubator to be used in this way has been 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 Emery, Walter d'Este. London, Lewis
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbacteri, bookyear1912
