The Sanitation of Cities and Towns and the Agricultural Utilization of Excretal Matters: Report on Improved Methods of Sewage Disposal and Water SuppliesSun Book and Job Printing Office, 1887 - 176 sider |
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Vanlige uttrykk og setninger
acid agricultural air-tight ammonia apparatus arranged atmosphere Baltimore barometrical Berlier system branch pipes carbonate of lime carbonic acid carried cent centimetres cesspools charcoal chemical cholera closet collecting conduit collecting tanks compartment condition constructed containing conveyed cost cubic metres dangerous diameter discharged disease disposal district drainage drains emptied Engineer epidemic evacuator excrementitious matters excretal matters excretal sewage fæcal matter fæces fall pipe feet fertilizing filtration Frankland gallons gases hard water household wastes Hygiene impure inches iron irrigation land Levallois-Perret liquid manure night soil nitrogen nuisance odor organic matter outfall Paris pass phosphoric acid pneumatic system polluted population pressure privy pumping purposes putrefaction putrescible quantity of water receiving receptacle removal reservoir river Rochdale sewage matters sewerage sewers sludge soil soil-pipe solid matter stream street surface tion towns trap typhoid fever urine valve water supply water-carriage water-closets
Populære avsnitt
Side 150 - By heating the water to boiling, an odor is evolved sometimes that otherwise does not appear. Taste. Water fresh from the well is usually tasteless, even though it may contain a large amount of putrescible organic matter. Water for domestic use should be perfectly tasteless, and remain so even after it has been warmed, since warming often develops a taste in water which is tasteless when cold. If the water, at any time, has a repulsive or even disagreeable taste, it should be rejected.
Side 129 - became so affected that the occupiers of fifteen houses, con"taining eighty-two inhabitants, were for ten days unable " to use the water for drinking or cooking.
Side 149 - Empty out some of the water, leaving the bottle half full ; cork up the bottle, and place it for a few hours in a warm place ; shake up the water, remove the cork, and critically smell the air contained in the bottle. If it has...
Side 150 - Fill a clean pint bottle three-fourths full with the water to be tested, and dissolve in the water half a teaspoonful of the purest sugar — loaf or granulated sugar will answer ; cork the bottle and place it in a warm place for two days. If in from twenty-four to forty-eight hours the water becomes cloudy or milky, it is unfit for domestic use.
Side 82 - Twenty-five millions are the most moderate of the approximative amounts given by the estimates of modern science. Science, after groping for a long time, knows now that the most fertilizing and effective of manures is human manure. The Chinese, let us say it to our shame, knew this before we did ; not a Chinese peasant — it is Eckeberg who states the fact — who goes to the city, but brings at either end of his bamboo a bucket full of what we call filth.
Side 14 - Dr. Pettenkofer. His admirable illustrations of the effect of the impurities which were accumulated in porous cesspits upon the air of the town, and the death-rate of the population, form a text-book of sanitary knowledge.
Side 74 - The interiors of the cells so built up are in communication directly with each other, or with a common channel, for the introduction of the matter operated upon, and as nothing introduced into the cells can find an exit without passing through the cloth...
Side 148 - But if the charcoal block is too expensive, a simple filter can be made as follows: Get a common earthenware garden flower-pot ; cover the hole with a bit of zinc gauze or a bit of clean-washed flannel, which should be changed from time to time; then get some rather small gravel, wash it very well and put it into the pot to the height of three inches ; then get some white sand and wash it very clean, and put that on the gravel to the height of three inches ; then...
Side 15 - From 1838 to 1844, before the commencement of the construction of any sewerage works, 48.5; from 1871 to 1880, after the completion of the sewerage works, 13.3. Dr. Buchanan, medical officer of the privy council of England, in his ninth report, has shown the marked improvement to health which followed the introduction of drainage, sewerage, and water supplies in twenty-five cities and towns, with an aggregate population of 593,736. The...
Side 26 - ... to prove that a badly cleansed and drained district is always a fever one. A competent witness remarks, that, "in addition to a general disarrangement of health, and an unusual liability to disease, there is one particular class of disease which is always to be found in neglected places — I mean the class of contagious disorders.