The Bacteria |
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according acetic acid agent algæ ammonia animals anthracis Bacillus Bacillus anthracis bacteria Bacterien Bactéries Bacterium Bacterium termo beer Beggiatoa Billroth blood butyric C. R. Ac carbonic acid Cells cylindrical chaplets charbon chemical chlorophyll cilium Cohn color colorless containing corpuscles cultivation Davaine diameter Ehrb Ehrenberg experiments Feltz fermentation fever filaments fission flagella flagellum fungi genera germs glanders globular granules greater number Hallier inferior organisms infusions injected Klebs lactic length Leptothrix lineola liquid maladies méd membrane ment micro micro-organisms microbacteria Micrococcus microscope monads Monas movement multiplication Mycoderma Nägeli observed oxygen Pasteur phenomena Phys presence of bacteria produced protoplasm putrefaction putrid rabbits Recherches refractive researches Robin rods rôle rugula Saccharomycetes schizomycetes seen septicemia sometimes species spherical bacteria spiral Spirillum Spirobacteria spontaneous sporangia spores substances surface temperature teria thickness tion tissues torula Toussaint urine variola vegetable Vibrio vibrioniens volutans Warming wounds Zooglea
Popular passages
Page 25 - ... traveller who wanders in an unknown country at the hour of twilight at the moment when the light of day no longer suffices to enable him clearly to distinguish objects, and when he is conscious that, notwithstanding all his precautions he is liable to lose his way.
Page 188 - We do not feel justified in adopting any definite conclusions," and closes a volume of nearly two hundred pages in regard to these germs with the statement, " As to their role in fermentations, in putrefactions, in contagious diseases, and in surgical lesions, notwithstanding the considerable number of labors of which bacteria have been the object in these different points in view, it is not yet possible to define it in a certain manner.
Page 34 - ... examples in which the body remains motionless, while the cilia are in violent agitation, and others in which the body moves, while the cilia remain inert or dragging behind.
Page 151 - Without them," according to Duclaux, "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.
Page 125 - Let us admit that the space occupied by the sea is equal to two-thirds of the terrestrial surface, and that its mean depth is a mile, the capacity of the ocean will be 928,000,000 cubic miles. The multiplication being continued with the same conditions, the bacteria issuing from a single germ would fill the ocean in five days.
Page 80 - B. by a more abundant and firmer intercellular substance), having spontaneous movements, oscillatory and very active, especially in media rich in alimentary material and in presence of oxygen.
Page 125 - ... (16,777,220) ; at the end of two days this bacterium will have multiplied to the incredible number of 281,500,000,000; at the end of three days it will have furnished fortyseven trillions ; at the end of about a week, a number which can only be represented by fifty-one figures.
Page 125 - In order to render these numbers more comprehensible, let us seek the volume and the weight which may result from the multiplication of a single bacterium. The individuals of the most common species of rod-bacteria present the form of a short cylinder having a diameter of a thousandth of a millimeter, and in the vicinity of one five hundredth of a millimetre in length.
Page 63 - Naegeli, that any of the forms of bacterial organisms may under certain conditions become pathogenic, or may manifest itself " as the agent of acidification of milk, of putrefaction, and as the agent producing several maladies.
Page 125 - that a bacterium divides into two in the space of an hour, then into four at the end of the second hour, then...