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 46
... effect of changes in the water supply has been . A few of these curves stand out very clearly . In the upper line the reduction in the typhoid rate of the city of Pitts- burgh is remarkable over all the others . The line showing the ...
... effect of changes in the water supply has been . A few of these curves stand out very clearly . In the upper line the reduction in the typhoid rate of the city of Pitts- burgh is remarkable over all the others . The line showing the ...
Էջ 49
... effect of the filtered water and its relative effects on the typhoid death- rate is quite great . Still greater may be the danger of any definite conclusion as to the effect of water supply on the total or general death - rate . The ...
... effect of the filtered water and its relative effects on the typhoid death- rate is quite great . Still greater may be the danger of any definite conclusion as to the effect of water supply on the total or general death - rate . The ...
Էջ 51
... effect of an unfiltered water supply from the effects of a filtered water supply . An unfiltered water supply which may be subjected to occasional gross pollution may produce at intervals a very serious epidemic . Such an epidemic may ...
... effect of an unfiltered water supply from the effects of a filtered water supply . An unfiltered water supply which may be subjected to occasional gross pollution may produce at intervals a very serious epidemic . Such an epidemic may ...
Էջ 54
... effect of the water supply improvements from the effect of a general sanitation improvement . In some cases , notably that of Cincinnati and Philadelphia , there is not much doubt that the improvement in water supply explains the ...
... effect of the water supply improvements from the effect of a general sanitation improvement . In some cases , notably that of Cincinnati and Philadelphia , there is not much doubt that the improvement in water supply explains the ...
Էջ 58
... effect of water supplies on typhoid fever , as compared with the effect of flies , mosquitoes , milk , and other possible sources of typhoid fever infection , was under considera- tion in the case of the Birmingham Water Works Company ...
... effect of water supplies on typhoid fever , as compared with the effect of flies , mosquitoes , milk , and other possible sources of typhoid fever infection , was under considera- tion in the case of the Birmingham Water Works Company ...
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.