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For staining spores: the specimen is covered with alkaline methylene blue and brought to a boil several times, then decolorized with a 2 percent. solution of nitric acid in 80 percent. alcohol, and finally dipped in a saturated alcoholic solution of eosin 10, in water 90; the spores are stained blue, the bodies of the bacilli pink.

Treatment of lateral curvature of the spine by a series of plaster jackets applied after partial correction of the curvature by pulling on the flexed spine in various directions by bandages; the aim is to obtain overcorrection and maintain it for a time until the bones are restored to their normal shape.