Municipal chemistryMcGraw-Hill book Company, 1910 - 526 Seiten |
Häufige Begriffe und Wortgruppen
action adulteration ammonia amount aqueduct ashes Ashokan reservoir bacteria barytes body building burning calcium carbon dioxide CATSKILL AQUEDUCT cause cells cement cent chemical chemist chemistry clean coal coal tar cocain color combustion concrete construction containing corrosion cotton creamery Department disease disposal drug dust effect embankment engineers explosive fact feet fiber filter filtration fire gallons garbage gases graphite heat hydrogen ignition impurities inspection inspector iron less lime linseed oil liquid lithopone manufacture material matter ment methods milk mixed mixture morphin natural nitrate nitroglycerine nuisance organic oxygen paint pigments plant portland cement powder practice present purification quantities removed reservoir road sand sanitary sewage silica silicate silk smoke solution steel stone stream streets substances sulphate sulphuric acid surface tank temperature tion tissue tunnel typhoid vapor ventilation waste water supply white lead wool York City zinc oxide
Beliebte Passagen
Seite 4 - What do you think the parson found, When he got up and stared around ? The poor old chaise in a heap or mound, As if it had been to the mill and ground ! You see, of course, if you're not a dunce, How it went to pieces all at once — All at once, and nothing first — Just as the bubbles do when they burst.
Seite 462 - They said one to another, Go to, let us make brick, and burn them thoroughly. And they had brick for stone, and slime had they for mortar.
Seite 286 - The right way to dispose of town sewage is to apply it continuously to land, and it is only by such application that the pollution of rivers can be avoided.
Seite 67 - The contractor shall retain the services of one or more qualified medical and surgical practitioners, who shall have the care of his employees, shall inspect their dwellings, the stables and the sanitaries...
Seite 70 - The medical supervision of the Contractor over his employees shall extend to the physical and medical examination of all applicants for employment, in order to prevent persons having communicable diseases from becoming connected with the work, and the Contractor shall employ only persons shown by such examination to be free from communicable diseases. Whenever, in the opinion of the Engineer, it is necessary for the protection of the public health or the health of the employees, the...
Seite 113 - Milk drawn from animals fed on distillery waste, or any substance in a state of fermentation or putrefaction, or on any unwholesome food.
Seite 437 - This addition is not as an adulterant, as was the case a few years ago, for it is now appreciated that the addition of barytes makes a white pigment more permanent, less likely to be attacked by acids, and freer from discoloration than when white lead is used alone.
Seite 462 - The use of crude brick, baked in the sun, was universal in Upper and Lower Egypt, both for public and private buildings, and the brick field gave abundant occupation to numerous laborers throughout the country.
Seite 473 - By a Portland cement is meant the product obtained from the heating or calcining up to incipient fusion of intimate mixtures, either natural or artificial, of argillaceous with calcareous substances, the calcined product to contain at least 1.7 times as much of lime, by weight, as of the materials which give the lime its hydraulic properties, and to be finely pulverized after said calcination, and thereafter additions or substitutions for the purpose only of regulating certain properties of technical...
Seite 69 - Contractor for the housing, feeding and sanitary necessities of the men, and suitable stabling for the animals employed upon the work. Such buildings shall be located at approved places.