Bacteria in Daily LifeLongmans, Green, 1903 - 216 páginas |
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Página 50
... spores , attaining an undesirable and hoary old age , in which they are in some cases almost indestructible . Fräulein Dr. E. Concornotti has shown that this is no figment of fancy only , for she has recently made a special and very ...
... spores , attaining an undesirable and hoary old age , in which they are in some cases almost indestructible . Fräulein Dr. E. Concornotti has shown that this is no figment of fancy only , for she has recently made a special and very ...
Página 66
... spores , * Roux demonstrating very conclu- sively that the bacillar form was far more sensitive * In the interior of some bacilli there appears a round or oval body , having a very bright and shining lustre , which is known as a spore ...
... spores , * Roux demonstrating very conclu- sively that the bacillar form was far more sensitive * In the interior of some bacilli there appears a round or oval body , having a very bright and shining lustre , which is known as a spore ...
Página 67
Grace C. Frankland. to light than the spore form , while Momont , in a classical series of experiments , not only fully confirmed these observations , but showed also that the intensity of the action of light depends to a very large ...
Grace C. Frankland. to light than the spore form , while Momont , in a classical series of experiments , not only fully confirmed these observations , but showed also that the intensity of the action of light depends to a very large ...
Página 72
... on the vitality of the spores of anthrax in Thames water . These experiments show again what an impor- tant influence the surroundings of the organism have on the bactericidal potency of the sun's rays , 72 BACTERIA IN DAILY LIFE.
... on the vitality of the spores of anthrax in Thames water . These experiments show again what an impor- tant influence the surroundings of the organism have on the bactericidal potency of the sun's rays , 72 BACTERIA IN DAILY LIFE.
Página 73
... spores are far less prejudicially affected by sunlight than when exposed in ordinary culture materials such as broth or gelatine . Thus it was only after one hundred and fifty - one hours ' insolation in Thames water that these spores ...
... spores are far less prejudicially affected by sunlight than when exposed in ordinary culture materials such as broth or gelatine . Thus it was only after one hundred and fifty - one hours ' insolation in Thames water that these spores ...
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Términos y frases comunes
abrine aërated waters Altona amongst animals anthrax anthrax bacillus anti-toxin anti-venomous serum bacteria present bacteriology blood broth Calmette cattle cent character cholera cobra condition consumption containing cows cubic centimetre dairy destroyed diphtheria discovered discovery disease germs dissemination doses dust eel serum effect employed experiments exposed exposure fact fatal frozen guinea-pigs hygienic immunisation immunity important infected inoculated insolation interest investigations Koch laboratory labours large number matter ments method micro-organisms microbes milk number of bacteria obtained ordinary organisms Pasteur Pasteur Institute pathogenic plague poison powers produce Professor properties protective purification rabbits realise recently regard rendered researches rinderpest Robert Koch samples scientific serpent venom sewage shown snake snake poison spores sputum sterilised substance succumbed sunshine surroundings taken temperature tetanus tion tobacco toxic toxin tubercle bacilli tuberculosis twenty drops typhoid bacilli typhoid fever venom poison viper virulent virus vitality water-supply whilst zymotic diseases
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Página 147 - Tu-who, a merry note, While greasy Joan doth keel the pot. When all aloud the wind doth blow And coughing drowns the parson's saw And birds sit brooding in the snow And Marian's nose looks red and...
Página 4 - Whenever and wherever there is decomposition of organic matter, whether it be the case of an herb or an oak, of a worm or a whale, the work is exclusively done by infinitely small organisms. They are the important, almost the only, agents of universal hygiene; they clear away more quickly than the dogs of Constantinople or the wild beasts of the desert the remains of all that has had life; they protect the living...
Página 138 - No doubt the largest part of the tuberculosis which man obtains through his food is by means of milk containing tuberculous matter.
Página 129 - Compared with sewage, for instance, a fluid which is popularly and rightly supposed to teem with germ life, it will almost always be observed that milk when it is consumed is richer in bacteria by far than the sewage of our large cities.
Página 138 - Ordinary processes of cooking applied to meat which has got contaminated on its surface are probably sufficient to destroy the harmful quality. They would not avail to render wholesome any piece of meat that contained tuberculous matter in its deeper parts. In regard to milk we are aware of the preference by English people for drinking cow's milk raw — a practice attended by danger on account of possible contamination by pathogenic organisms. The. boiling of milk, even for a moment, would probably...
Página 94 - Elbe for their water-supply, but whereas in the case of Hamburg the intake is situated above the city, the supply for Altona is abstracted below Hamburg after it has received the sewage of a population of close upon 800,000 persons. The Hamburg water was, therefore, to start with, relatively pure when compared with that destined for the use of Altona. But what was the fate of these two towns as regards cholera? Situated side by side, absolutely contiguous, in fact, with nothing in their surroundings...
Página 101 - The death-rate from this cause has generally fallen as the per cent, of the population supplied with public water has risen, for the reason that the majority of the deaths from typhoid fever have occurred among communities and portions of communities not supplied with public water.
Página 124 - ... for dairy purposes should be absolutely beyond suspicion of contamination. Professor Russell has shown by actual experiment that, even where the vessels are in good condition and fairly well cleaned, the milk has a very different bacterial population when collected in them and in vessels stabilised by steam.
Página 97 - ISM while when efficiently pursued it forms a most important barrier to the dissemination of disease germs, the slightest imperfection in its manipulation is a constant menace during any epidemic.