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Page 141 - The best remedies for corrosion are generally the simplest and least expensive; but, after all, there can be no hard and fast rule laid down as to...
Page 936 - Lords' committee of 1863 decided that ' it would be desirable to complete an inner circuit of railway that should abut upon, if it did not actually join, nearly all the principal railway termini in the Metropolis, commencing with the extension in an easterly and southerly direction of the Metropolitan Railway, from Finsbury Circus at the one end, and in a westerly and southerly direction from Paddington at the other, and connecting the extremities of those lines by a line on the north side of the...
Page 582 - Taking all the above facts into consideration, it appears to me that the removal of impurities from rivers is more of a biological than a chemical question ; and that in all discussions of the subject it is most important to consider the action of minute animals and plants, which may be looked upon as being indirectly most powerful chemical agents.
Page 962 - May not the unseen agents be those vibrions or anaerobies which, according to Pasteur, are destroyed by oxygen, and only manifest their activity in vessels from which the air is excluded?
Page 521 - The Minerals which Accompany Gold, and Their Bearing upon the Richness of Ore Deposits.
Page 69 - So sanitarians have learned that it is not so much the quantity as the quality...
Page 433 - ... is the amount of heat necessary to raise one pound of water from 61° F to 62° F. This is called the British thermal unit (BTU).
Page 479 - ... parallel drawn here between metals and living matter is not fantastic. It has been aptly made by Osmond, who said rightly that modern science was treating the industrial metal like a living organism and that we were led to study its anatomy, ie, its physical and chemical constitution; its biology, ie, the influence exerted upon its constitution by the various treatments, thermal and mechanical, to which the metal is lawfully subjected ; and its pathology, ie, the action of impurities and defective...
Page 961 - ... or filtrantes, which permitted the liquids to escape and reduced the refuse to one-fifth part, and the vidange automatique, invented by Mouras to do away with the necessity for even periodic removal of the solids" (Metcalf, 1901). The latter was "a closed vault with a water seal, which rapidly transforms all the excrementitious matter which it receives into a homogeneous fluid, only slightly turbid, and holding all the solid matters in suspension in the form of scarcely visible filaments.