The Separate System of Sewerage: Its Theory and ConstructionD. Van Nostrand Company, 1899 - 324 páginas |
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Página 21
... years , an epidemic of typhoid fever broke out , which struck down seventeen per cent . of the whole population . The cases of fever were pretty evenly distributed among the families in the village , CHAP . I. 21 INTRODUCTION .
... years , an epidemic of typhoid fever broke out , which struck down seventeen per cent . of the whole population . The cases of fever were pretty evenly distributed among the families in the village , CHAP . I. 21 INTRODUCTION .
Página 29
... cent . A marked decrease in the amount of sickness and a prolongation of life has always followed proper sanitary ... cent . Reduction of typhoid fever , rate per cent . Reduction in rate of pulmo- nary disease , per cent . 1 " At ...
... cent . A marked decrease in the amount of sickness and a prolongation of life has always followed proper sanitary ... cent . Reduction of typhoid fever , rate per cent . Reduction in rate of pulmo- nary disease , per cent . 1 " At ...
Página 44
... cent in the summer warmth , breeding disease which superstitious ignorance attributes to Heaven . A householder may dispense with his parlor and its adornments , if necessary , but he cannot afford to invite upon himself and fam- ily ...
... cent in the summer warmth , breeding disease which superstitious ignorance attributes to Heaven . A householder may dispense with his parlor and its adornments , if necessary , but he cannot afford to invite upon himself and fam- ily ...
Página 53
... cents to $ 2.00 per foot . It is safe to say that under ordinary circumstances its cost will be from one - eighth to one - third of that of the Combined System . It may be asked why the Combined System is still adopted in so many cases ...
... cents to $ 2.00 per foot . It is safe to say that under ordinary circumstances its cost will be from one - eighth to one - third of that of the Combined System . It may be asked why the Combined System is still adopted in so many cases ...
Página 55
... cent . , or from one- thirtieth up to nearly one - third of the total population . The increase has been quite regular from the beginning up to 1880 , while from 1880 to 1890 it has made a leap from 22.57 up to 29.12 per cent . , thus ...
... cent . , or from one- thirtieth up to nearly one - third of the total population . The increase has been quite regular from the beginning up to 1880 , while from 1880 to 1890 it has made a leap from 22.57 up to 29.12 per cent . , thus ...
Otras ediciones - Ver todas
The Separate System of Sewerage, Its Theory and Construction Staley Cady 1840-,George Spencer Joint Author Pierson Sin vista previa disponible - 2016 |
Términos y frases comunes
ammonias amount assessing average back-filling bacteria branches brick sewer cent clean Combined System connected construction consumption contractor cost cubic curve dead end depth of flow diagram diem per capita discharge distance drainage effluent Engineer Excavating and Back feet per second filled filter filtration fixtures flush-tanks gallons grade horizontal house drains house sewer inches inches in diameter increased iron pipe joints laid lamp-holes length less lineal foot man-holes material maximum method necessary nitrification nitrogen obstruct ordinary organic matter outlet pipe sewers placed plumb-bob plumbing plumbing fixtures population Price per lineal proper properly pumping purified removal sand sanitary Schenectady Separate System sewage sewer gas sewer pipe sewerage shown in Plate soil pipe storm water stream street sewer subsoil Superintendent surface syphon system of sewers TABLE tank tion trap trench typhoid fever velocity ventilating pipes waste pipes ΙΟ
Pasajes populares
Página 155 - ... for or on account of any injuries or damages received or sustained by any person or persons, by or from the said contractor, his servants or agents, in the construction of said work...
Página 156 - Stevenson or to his certain attorney, heirs, executors, administrators, or assigns, to which payment well and truly to be made we bind ourselves, our heirs, executors, and administrators, and each and every of them, firmly by these presents. Sealed with our seals, and dated this 20th day of December, one thousand eight hundred and ninety.
Página 247 - ... be deemed guilty of a misdemeanor, and upon conviction thereof be fined in any sum not exceeding fifty dollars.
Página 312 - With the gravels and sands, from the coarsest to the finest, we find that purification by nitrification takes place in all, when the quantity of sewage is adapted to their ability, and the surface is not allowed to become clogged by organic matter to the exclusion of air.
Página 140 - Engineer. [INSTRUCTIONS TO CONTRACTORS.] TO CONTRACTORS. 1. All bids must be made upon the printed forms, to be obtained at the office of the Engineer, and enclosed in a sealed envelope, directed to the Engineer of Sewers and endorsed upon the outside of the envelope, Proposal for Constructing Sewers in the City of 2. Each bid must be accompanied by a deposit of Dollars, to be left in the hands of the City Clerk, subject to the conditions specified in the proposal hereto annexed, as a guarantee of...
Página 143 - NOW, THEREFORE, In consideration of the payments and covenants hereinafter mentioned, to be made and performed by said...
Página 246 - No brick, sheet metal, earthenware or chimney flue shall be used as a sewer ventilator, nor to ventilate any trap, drain, soil or waste-pipe.
Página 304 - ... 2. In order that the effluent water may not be directly polluted by the sewage liquid, the maximum supply of the latter must not be more than can be taken up by the pores of the soil. 3. Dry loamy soil absorbs more than peaty soil and gives up less, whilst dry sandy soil on the contrary absorbs less and gives up more.
Página 30 - Smith, in a very comprehensive paper on the "Influence of sewerage and water supply on the death rate in cities" writes as follows: "Data drawn from sewered cities is now available for study and comparison.
Página 154 - If such alterations diminish the quantity of work to be done they shall not constitute a claim for damages, or for anticipated profits on the work that may be dispensed with ; if they increase the amount of work, such increase shall be paid for according to the quantity of the work actually done and at prices and rates established for such work under this contract.