Journal of bacteriology . rt of one case. In discussing methods of treatment, the author states that the admin-istration of vaccines prepared from trichinae derived from infected hogswould be a logical step, as specific antibodies have been demonstratedin the blood of patients suffering from trichiniasis.—M. W. C. Thionin as a Diagnostic Stain for Pyorrhea Alveolaris. Martin Dupray. Jour. A. M. A., 1916, 66, 507. An excellent diagnostic stain for endamebae may be prepared asfollows: Thionin gm. Distilled water cc. Phenol crystals gm. ABSTRACTS 267 The smear is air-dried, fixed in
Journal of bacteriology . rt of one case. In discussing methods of treatment, the author states that the admin-istration of vaccines prepared from trichinae derived from infected hogswould be a logical step, as specific antibodies have been demonstratedin the blood of patients suffering from trichiniasis.—M. W. C. Thionin as a Diagnostic Stain for Pyorrhea Alveolaris. Martin Dupray. Jour. A. M. A., 1916, 66, 507. An excellent diagnostic stain for endamebae may be prepared asfollows: Thionin gm. Distilled water cc. Phenol crystals gm. ABSTRACTS 267 The smear is air-dried, fixed in flame, stained for a few seconds whilewarm, washed and dried. The cytoplasm of the endamabae stains a light purplish violet, thenuclei a deeper reddish violet. Ingested blood corpuscles are nearly-black. Pus cells are a light blue. Bacteria are well stained, the fusi-form bacilli and spirilla being especially plain. The stain deteriorates in three to four months.—G. H. S. De KhotinskyFixing and Hot Staining Apparatus. No. 8049A Electrically Heated This apparatus meets the need for a clean and neat apparatus for hot staining. Byits use it is possible to fix the smears of sputum, etc., without danger of burning, to stainthem without danger of boiling the carbolfuchsin solution and also to avoid dropping carbol-fuchsin over the laboratory tables and floors. It consists of an asbestos wood frame withbase which will stand red heat without destruction. In the bottom is a sliding metal shelf,to be filled with sand for catching any drippings and to aid in reflecting all the heat upwardfrom the heating units, of which there is one for every two slides. These units, which areeasily replaceable, are made of lavite, bound with nichrome wire, which is insoluble in boil-ing carbolfuchsin. The slide carriers are nickel-plated brass frames made to fit in the as-bestos frame at a suitable height above the electrical units. The base is provided withleveling screws. A set of fuses is placed
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