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 6-ից 10-ը:
Էջ 22
... test is that the incubation was effected at a temperature of 20 ° Centigrade , about normal room temperature . Under such conditions the ... tests . TABLE I. COMPARISON OF GELATINE AND AGAR COUNTS PER CUBIC 22 [ J. F. I. GEORGE W. FULLER .
... test is that the incubation was effected at a temperature of 20 ° Centigrade , about normal room temperature . Under such conditions the ... tests . TABLE I. COMPARISON OF GELATINE AND AGAR COUNTS PER CUBIC 22 [ J. F. I. GEORGE W. FULLER .
Էջ 25
... tests of the occurrence of B. coli . They involve the use of the lactose peptone bile " presumptive test " as sufficient to show B. coli and to rate coli or coli gas - forming bacteria by this test . There is a good deal to be said for ...
... tests of the occurrence of B. coli . They involve the use of the lactose peptone bile " presumptive test " as sufficient to show B. coli and to rate coli or coli gas - forming bacteria by this test . There is a good deal to be said for ...
Էջ 26
... testing are given . These figures by Professor Gärtner are taken from Dr. Houston's tests of London water . Three methods of testing are given : the first , the so - called pre- sumptive test , is noted from the gas formation ; the ...
... testing are given . These figures by Professor Gärtner are taken from Dr. Houston's tests of London water . Three methods of testing are given : the first , the so - called pre- sumptive test , is noted from the gas formation ; the ...
Էջ 27
... tests showing positive results Presumptive test Confirmatory test Volume Source of water tested Fermentation C.C. and gas bile , glucose and peptone solution formation of Isolation of coli - like microbe , form- ing gas either in ...
... tests showing positive results Presumptive test Confirmatory test Volume Source of water tested Fermentation C.C. and gas bile , glucose and peptone solution formation of Isolation of coli - like microbe , form- ing gas either in ...
Էջ 28
... tests made for B. coli then in vogue it was found that sixty per cent . of the samples showed the presence of this organism when one cubic centimetre of the water was tested . ( See the speaker's report on Water Purification at ...
... tests made for B. coli then in vogue it was found that sixty per cent . of the samples showed the presence of this organism when one cubic centimetre of the water was tested . ( See the speaker's report on Water Purification at ...
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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.