Bacteria in Daily LifeLongmans, Green, 1903 - 216 страници |
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Страница 12
... sewage which honeycomb every city of the world . The purification which sewage underwent by passing it through the pores of the soil , or , in other words , by filtration , was recognised about the year 1870 , soon after the Rivers ...
... sewage which honeycomb every city of the world . The purification which sewage underwent by passing it through the pores of the soil , or , in other words , by filtration , was recognised about the year 1870 , soon after the Rivers ...
Страница 13
... sewage : those which flourish in the absence of air and are known as anaërobic bacteria , and those to which the presence of air is essential for the exercise of their func- tions , the latter being therefore called aërobic bacteria ...
... sewage : those which flourish in the absence of air and are known as anaërobic bacteria , and those to which the presence of air is essential for the exercise of their func- tions , the latter being therefore called aërobic bacteria ...
Страница 14
... sewage is passed from one on to a second , and so on , until the purification is complete . Under proper man- agement the ' sewage should leave the works as an inodorous , almost pellucid liquid , incapable of putrefaction , which may ...
... sewage is passed from one on to a second , and so on , until the purification is complete . Under proper man- agement the ' sewage should leave the works as an inodorous , almost pellucid liquid , incapable of putrefaction , which may ...
Страница 35
... sewage we have not only one of the latest , but perhaps also one of the most successful examples of that system of division of labour , or specialisation of energy , which forms such a characteristic feature of work of all kinds at the ...
... sewage we have not only one of the latest , but perhaps also one of the most successful examples of that system of division of labour , or specialisation of energy , which forms such a characteristic feature of work of all kinds at the ...
Страница 40
... sewage . Ample opportunity was thus given for its desiccation and subsequent distribution as dust . That this typhoidal matter did subsequently become pul- verised and spread the infection Dr. Mewius has no doubt , the germs having been ...
... sewage . Ample opportunity was thus given for its desiccation and subsequent distribution as dust . That this typhoidal matter did subsequently become pul- verised and spread the infection Dr. Mewius has no doubt , the germs having been ...
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