. Pathogenic micro-organisms. A text-book of microbiology for physicians and students of medicine. (Based upon Williams' Bacteriology). Bacteriology; Pathogenic bacteria. MiyiiJ^. Fig. 44.—Manner of making Esmarch roll-tube. venient. A block of ice should be at hand, and, with a tube filled with hot water and lying horizontally, a hollow of the size of the test-tube should be melted on the upper surface of the ice. In this hollow, place the tube of liquefied gelatin or agar; roll it rapid- ly with the hand, taking care that the culture-medium does not run toward the neck as far as the cotton p


. Pathogenic micro-organisms. A text-book of microbiology for physicians and students of medicine. (Based upon Williams' Bacteriology). Bacteriology; Pathogenic bacteria. MiyiiJ^. Fig. 44.—Manner of making Esmarch roll-tube. venient. A block of ice should be at hand, and, with a tube filled with hot water and lying horizontally, a hollow of the size of the test-tube should be melted on the upper surface of the ice. In this hollow, place the tube of liquefied gelatin or agar; roll it rapid- ly with the hand, taking care that the culture-medium does not run toward the neck as far as the cotton plug. The medium is spread in a uniform manner around the inside of the tube, where it becomes sohdified. Gelatin roll-tubes must be kept in a place so cool that there is no danger of their melting; in handling them they are to be held near the neck, so that the warmth of the hand. 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 MacNeal, Ward J. , 1881-1946; Williams, Herbert Upham, 1866-. Philadelphia, P. Blakiston's Son & Co.


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Keywords: ., bookcentury1900, bookdecade1920, booksubjectbacteri, bookyear1920