A manual of bacteriology, clinical and applied / by R. Tanner Hewlett.

  • Hewlett, R. Tanner (Richard Tanner), 1865-1940.
Date:
1911
Catalogue details

Licence: In copyright

Credit: A manual of bacteriology, clinical and applied / by R. Tanner Hewlett. Source: Wellcome Collection.

Provider: This material has been provided by Royal College of Physicians, London. The original may be consulted at Royal College of Physicians, London.

    67/790 (page 51)
    Apparatus and Pipettes inches of platinum wire in a handle of glass rod. One end of a Sflass rod is softened in the Bunsen or blow- pipe flame, and about an eighth of an inch of the platinum wire is embedded in it with a forceps, the wire having1 been first heated to a red heat. The Fig. 6.—Platinum needles. ylass-wire ioint is then well annealed in the flame and allowed to cool slowly. Metal handles may also be used. Two thicknesses of platinum wire are desirable, viz. 0*4 mm. (27-28 B.W.Gr.) for most purposes, but a thicker wire of about 0'7 mm. where stiffness is required, and one or two o in. or more in length are useful. Forceps, needles, etc.—Several forceps are necessary, the ordinary dissecting form in two or three, sizes, one or two pairs of hue pointed, two or three small brass ones, and two or three pairs of the Cornet pattern. A few ordinary sewing needles of various sizes mounted in wooden handles serve all purposes. Fig. 7.—Glass pipette. Glass pipettes and capillary tubes. — These are useful for preserving or storing blood or pus, etc., for examination, for sterile water in making film speci- mens, and for many other purposes. A piece of glass tubing is heated in the blowpipe flame until quite soft; it is then taken out uf the flame and the two ends