. Laboratory work in bacteriology. Bacteriology. METHODS OF INFECTION. 263 succession. In this way, the syringe is heated up evenly. It is then partially filled with water, placed on the syringe holder (Fig. 41 c), and immersed in the boiling water. Ah exposure for three to five minutes under these conditions will be sufftcient. The holder with the syringe is then re- moved and the latter is allowed to cool, after which the contained water is expelled. The bacterial fiuid is now drawn up into the syringe through the needle. If any air is present this should be expelled, by holding the syringe
. Laboratory work in bacteriology. Bacteriology. METHODS OF INFECTION. 263 succession. In this way, the syringe is heated up evenly. It is then partially filled with water, placed on the syringe holder (Fig. 41 c), and immersed in the boiling water. Ah exposure for three to five minutes under these conditions will be sufftcient. The holder with the syringe is then re- moved and the latter is allowed to cool, after which the contained water is expelled. The bacterial fiuid is now drawn up into the syringe through the needle. If any air is present this should be expelled, by holding the syringe in a vertical position and applying gradual pressure to the piston. Before doing this, it is advisable to pass the needle through a piece of sterile filter paper, slipped over the end of a wide test-tube. The latter receives the few drops of liquid that are expelled at the same time with the Fig. 41. aâFletcher radial burner; â inge holder; dâSyringe. â Enameled stew-pan or water-bath; After using the syringe, it should be rinsed with boil- ing water in the manner mentioned, and then immersed in the boiling water and sterilized. In order to prevent rust- ing of the needles, these should be kept in a 10 per cent, solution of borax. When it is desirable to inject a relatively large quan- tity of liquid into an animal, or to inject a number of animals in succession with the same liquid (as in the immunization of horses), then an arrangement similar to that shown in. 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 Novy, Frederick George, 1864- . Ann Arbor [Mich. ] G. Wahr
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