BacteriaWilliam Wood, 1883 - 498 páginas |
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Términos y frases comunes
abscesses Acad According acid alcohol animals anthracis anthrax bacillus Bacillus anthracis bacteria Bacterium Beggiatoa blood body carbolic acid carbonic cells cellular cent solution chemical coccus Cohn color Compt containing Cornevin corpuscles cultivated culture culture-fluid culture-medium destroyed diameter Ehrb evidence examination experimental experiments extremely fact Fahr fatal favorable fermentation filaments flagellum flasks fluid fungi germicide germs granules guinea-pigs human saliva infectious disease infusions injected inoculation killed Klebs Koch Leptothrix liquid malarial material membrane ments method micro-organisms microbe micrococcus micrococcus of pus microscopic minute movement multiply observed obtained occur organisms oval oxygen parasite Pasteur pathogenic poison present produced protoplasm putrefaction putrid quantity rabbit recently rend result rods rôle saliva septic septicæmic septicemia serum species spherical Spirillum spleen spores staining sterilized substances surface symptomatic anthrax temperature teria termo tion tissues tube tubercle typhoid urine vaccine vegetable Vibrio virulence virus writer yellow fever
Pasajes populares
Página 485 - ESSAYS ON THE FLOATING MATTER OF THE AIR IN RELATION TO PUTREFACTION AND INFECTION.
Página 411 - Contagium may by means of it be multiplied to an indefinite extent in successive generations, and that the product after any number of such generations shall (so far as can within the time be tested) prove itself of identical potency with standard vaccine lymph," — has not been solved by any of the candidates.
Página 321 - Tommasi-Crudeli ; but there is no satisfactory evidence that these or any of the other bacterial organisms found in such situations, when injected beneath the skin of a rabbit, give rise to a malarial fever corresponding with the ordinary paludal fevers to which man is subject.
Página 411 - To discover a method by which the vaccine contagium may be cultivated apart from the animal body, in some medium or media not otherwise zymotic : the method to be such that the contagium may by means of it be multiplied to an indefinite extent in successive generations, and that the product after any number of such generations .shall (so far as can within the time be tested) prove itself of identical potency with standard vaccine lymph.
Página 248 - But if we inject a like quantity of the culture fluid with its contained bacteria into the circulation of a living animal, not only does no increase and no putrefactive change occur, but the bacteria introduced quickly disappear, and at the end of an hour or two the most careful microscopical examination will not reveal the presence of a single bacterium. This difference we ascribe to the vital properties of the fluid as contained in the vessels of a...
Página 322 - Bacillus malaria, or some other of the minute organisms associated with it, is not the active agent in the causation of malarial fevers in man. On the other hand there are many circumstances in favor of the hypothesis that the etiology of these fevers is connected directly or indirectly, with the presence of these organisms or their germs in the air and water of malarial localities.
Página 206 - ... a variety of antiseptic substances will be found to be equally effective when used in the proper proportion. Subsequent experiments have shown that neither of these agents is capable of destroying the vitality of the septic micrococcus in the proportion used (one per cent of sodium hyposulphite, or one part of ninety-five per cent alcohol to three parts of virus), and that both have a restraining influence upon the development of this organism in culture fluids.
Página 190 - The. great advantage consists in doing away with the use of nitric acid. The stain is made as follows : Take of rosanilin hydrochloride two grammes, methyl blue one gramme ; rub them up in a glass mortar. Then dissolve anilin oil 3 cc in rectified spirit 15 cc ; add the spirit slowly to the stains until all is dissolved, then slowly add distilled water 15 cc ; keep in a stoppered bottle.
Página 274 - All the larger vessels, even the arteries and veins of an intestinal villus, are either not stained at all or have but a light blue streak in their interior, and that only here and there. When magnified 250 times one can see that the blue capillary net-work is composed of numerous delicate rods, and when a power of 700 diameters is used, it is found that the apparent injection is nothing more or less than the Bacillus anthracis, stained dark blue, and present in incredible numbers in the whole capillary...
Página 149 - En rtsumd, the little beings which we have been considering have an important role : they cause the return of dead organic matter to the atmosphere and to water. " Without them, organic matter, even exposed to the air, would not be destroyed or would be transformed with extreme slowness, in consequence of a slow combustion produced by oxygen. With them, on the contrary, its destruction takes a rapid march and becomes complete.