Bacteria in Daily LifeLongmans, Green, 1903 - 216 páginas |
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Página 28
... showed that the germs of consumption , anthrax , and typhoid fever could pass through the digestive organs of flies and reappear in the excreta of the latter not only alive but in full possession of their disease - producing powers . Dr ...
... showed that the germs of consumption , anthrax , and typhoid fever could pass through the digestive organs of flies and reappear in the excreta of the latter not only alive but in full possession of their disease - producing powers . Dr ...
Página 29
... showed many years earlier silkworms can communicate the fatal plague of pébrine by crawling over each other's bodies , carrying in their disease - laden feet the infection from one worm to another . During the recent outbreak of bubonic ...
... showed many years earlier silkworms can communicate the fatal plague of pébrine by crawling over each other's bodies , carrying in their disease - laden feet the infection from one worm to another . During the recent outbreak of bubonic ...
Página 53
... showed that in those buildings where mechanical ventilation was used the carbonic acid gas was three - fifths , the organic matter one - seventh , and the micro - organisms less than one - ninth of what was found in schools ventilated ...
... showed that in those buildings where mechanical ventilation was used the carbonic acid gas was three - fifths , the organic matter one - seventh , and the micro - organisms less than one - ninth of what was found in schools ventilated ...
Página 66
... showed that flasks containing nutritive solutions and infected with bacteria when exposed in the sunshine for twenty- four hours remained unaltered , whilst similar vessels kept in the shade became turbid , showing that in these the ...
... showed that flasks containing nutritive solutions and infected with bacteria when exposed in the sunshine for twenty- four hours remained unaltered , whilst similar vessels kept in the shade became turbid , showing that in these the ...
Página 67
... showed also that the intensity of the action of light depends to a very large extent on the environment of the organism . Thus , if broth containing anthrax bacilli is placed in the sunshine , the latter are destroyed in from two to two ...
... showed also that the intensity of the action of light depends to a very large extent on the environment of the organism . Thus , if broth containing anthrax bacilli is placed in the sunshine , the latter are destroyed in from two to two ...
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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
Pasajes populares
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.