Journal of the Franklin Institute, Հատոր 180Pergamon Press, 1915 Vols. 1-69 include more or less complete patent reports of the U. S. Patent Office for years 1825-1859. cf. Index to v. 1-120 of the Journal, p. [415] |
From inside the book
Արդյունքներ 100–ի 1-ից 5-ը:
Էջ 19
... present , the water is safe for domestic consumption , and is what is generally termed " a wholesome water . " Unfortunately , such direct determination can be made only with the greatest of July , 1915. ] 19 SANITARY WATER SUPPLY .
... present , the water is safe for domestic consumption , and is what is generally termed " a wholesome water . " Unfortunately , such direct determination can be made only with the greatest of July , 1915. ] 19 SANITARY WATER SUPPLY .
Էջ 20
... present in a public water supply . A few investigators , among whom may be particularly men- tioned Dr. A. C. Houston , Director of Water Examinations , Metropolitan Water Board , London , have insisted that their methods of ...
... present in a public water supply . A few investigators , among whom may be particularly men- tioned Dr. A. C. Houston , Director of Water Examinations , Metropolitan Water Board , London , have insisted that their methods of ...
Էջ 21
... present in a given volume of the water , and , second , the determination of the absence or quantitative presence of certain specific bacteria which may be called indicators of the possibility of the presence of disease germs ...
... present in a given volume of the water , and , second , the determination of the absence or quantitative presence of certain specific bacteria which may be called indicators of the possibility of the presence of disease germs ...
Էջ 25
... present . It merely suggests a potential danger in such a water . This difficulty is made more pronounced by the large number of forms or types in which the B. coli appear . The colon bacillus is not a simply definite form of unvarying ...
... present . It merely suggests a potential danger in such a water . This difficulty is made more pronounced by the large number of forms or types in which the B. coli appear . The colon bacillus is not a simply definite form of unvarying ...
Էջ 28
... present site at Cali- fornia , seven miles above the old intake and one mile above the mouth of the Little Miami River . A marked falling off in the typhoid occurred during the summer of that year , and before the filtration plant was ...
... present site at Cali- fornia , seven miles above the old intake and one mile above the mouth of the Little Miami River . A marked falling off in the typhoid occurred during the summer of that year , and before the filtration plant was ...
Այլ խմբագրություններ - View all
Common terms and phrases
acid alternating current apparatus applied atom bacteria Board of Managers Bureau busbars cable cent centimetre chemical chemistry chloride circuit City CLXXX coal COEFFICIENTS coli color Company copper courtesy in mentioning cubic centimetre Curie point dissociation distillation Edward Longstreth effect efficiency electric electrolyte Engineers experiments EXTENSOMETER filter fire formamid FRANKLIN INSTITUTE galvanometer heat inch increase investigation iron laboratory lamp light load lock angle locomotive luminosity luminosity curve luminous luminous efficiency luminous flux Machine magnetic maximum means measurements mechanical mechanical stoker Medal and Premium ment mentioning the Journal metal method mixture obtained operation paper Philadelphia photometer physical plate potash potassium practical produced radiation ratio Report salts screen shown solution Specimen spectrum standard steam steel stoker Street stress surface TABLE temperature tests tion typhoid typhoid fever United viscosity voltage water supply watt yellow ΙΟ
Սիրված հատվածներ
Էջ 386 - THE BOYDEN PREMIUM URIAH A. BOYDEN, ESQ., of Boston, Mass., has deposited with THE FRANKLIN INSTITUTE the sum of one thousand dollars, to be awarded as a premium to "Any resident of North America who shall determine by experiment whether all rays of light,* and other physical rays, are or are not transmitted with the same velocity.
Էջ 104 - As a unit of resistance, the international ohm, which is based upon the ohm equal to io9 units of resistance of the CGS system of electro-magnetic units, and is represented by the resistance offered to an unvarying electric current by a column of mercury at the temperature of melting ice, 14.4521 grammes in mass, of a constant cross-sectional area and of the length of 106.3 centimeters.
Էջ 640 - Esq., awarded annually to those workers in physical science or technology, without regard to country, whose efforts, in the opinion of the Institute, acting through its Committee on Science and the Arts, have done most to advance a knowledge of physical science or its applications.
Էջ 640 - ... and containing the name and address of the author of the memoir. It shall be the duty of the Secretary of the FRANKLIN INSTITUTE to keep these envelopes securely and unopened until the Judges, shall have finished their examination ; when, should the Judges be of opinion that any one of the memoirs is worthy of the Premium , the corresponding envelope shall be opened, and the name of the author communicated to the INSTITUTE.
Էջ 252 - This medal is awarded for discovery or original research, adding to the sum of human knowledge, irrespective of commercial value ; leading and practical utilizations of discovery; and invention, methods or products embodying substantial elements of leadership in their respective classes, or unusual skill or perfection in workmanship.
Էջ 252 - States of competent scientific ability, to whom the memoir shall be referred ; and the said Judges shall examine the memoirs and report to THE FRANKLIN INSTITUTE whether, in their opinion, any, and, if so, which of the memoirs is worthy of the Premium.
Էջ 512 - January, one thousand nine hundred and fifteen, will, as soon as possible after this date, be transmitted to the Committee of Judges. 3. The Board of Managers of THE FRANKLIN INSTITUTE shall, before the first day of January, one thousand...
Էջ 386 - Arts, undertakes to make investigations free of charge and to recommend for the award all meritorious inventions. Applications should be addressed to the Secretary of THE FRANKLIN INSTITUTE, from whom all information relative thereto may be obtained.
Էջ 48 - Hazen clearly indicate that where one death from typhoid fever has been avoided by the use of a better water, a certain number of deaths, probably two or three, from other causes, have been avoided.