Clinical diagnosis : a practical handbook of chemical and microscopical methods / [W.G. Aitchison Robertson].

  • William George Aitchison Robertson
Date:
1896
Catalogue details

Licence: Public Domain Mark

Credit: Clinical diagnosis : a practical handbook of chemical and microscopical methods / [W.G. Aitchison Robertson]. Source: Wellcome Collection.

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    Two lie together usually—Diplo- coccus. Aggregated in chains sometimes. Colourless capsule surrounds many diplococci. Fig. 9.—Pneumonococci. Method of Staining. 1. Friedldnders Method. Make cover glass preparation. Dip in dilute acetic acid (1 per cent.) for one minute. Dry. Stain in saturated aniline water gentian violet solution (p. 20). Wash freely in water. Dry and mount in balsam. Cocci appear as dark blue rods. Capsules stain a clear grey-blue colour. 2. Grams Method. Stain the preparations as in Fried- lander's method (above).