The Principles of hygieneW.B. Saunders, 1904 - 536 من الصفحات |
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الصفحة 12
... Nitrogen , 248. - Amount of Exercise that should be Taken , 249 . CHAPTER IX . CLOTHING . Protection against Cold , 252. - Protection against Heat , 253. - Pro- tection against Dampness , 253. - Protection against Injury , 254 ...
... Nitrogen , 248. - Amount of Exercise that should be Taken , 249 . CHAPTER IX . CLOTHING . Protection against Cold , 252. - Protection against Heat , 253. - Pro- tection against Dampness , 253. - Protection against Injury , 254 ...
الصفحة 31
... Nitrogen in the proportion of 78.20 parts , by volume ; oxygen , 20.76 parts ; argon , I part ; carbon dioxid , 0.04 ... nitrogen in natural air varies only within extremely narrow limits . It is an indifferent gas , and seems to serve ...
... Nitrogen in the proportion of 78.20 parts , by volume ; oxygen , 20.76 parts ; argon , I part ; carbon dioxid , 0.04 ... nitrogen in natural air varies only within extremely narrow limits . It is an indifferent gas , and seems to serve ...
الصفحة 32
... nitrogen , but , under natural conditions , it is fairly constant , because any slight decrease in its proportion in circumscribed locali- ties is readily corrected through the action of the princi- ple of diffusion . The proportion of ...
... nitrogen , but , under natural conditions , it is fairly constant , because any slight decrease in its proportion in circumscribed locali- ties is readily corrected through the action of the princi- ple of diffusion . The proportion of ...
الصفحة 51
... carbon dioxid to between . 4 and 5 per cent . ( 5 and 6 ) There is an increase of ammonia and watery vapor . ( 7 ) The nitrogen is generally increased , but sometimes diminished . ( 8 ) The THE IMPURITIES IN AIR . 51.
... carbon dioxid to between . 4 and 5 per cent . ( 5 and 6 ) There is an increase of ammonia and watery vapor . ( 7 ) The nitrogen is generally increased , but sometimes diminished . ( 8 ) The THE IMPURITIES IN AIR . 51.
الصفحة 69
... nitrogen which constitutes atmospheric air , dif- fuse through space , the force of the diffusion being inversely as the square roots of the densities of the gases . The diffusion of carbon dioxid , and the other gaseous impurities in ...
... nitrogen which constitutes atmospheric air , dif- fuse through space , the force of the diffusion being inversely as the square roots of the densities of the gases . The diffusion of carbon dioxid , and the other gaseous impurities in ...
عبارات ومصطلحات مألوفة
acid ammonia amount animals average bacillus bacteria Bacteriology blood Board of Health body boiling calories carbolic acid carbon dioxid cause cent centimeters cholera climate clothing color contained cubic meters danger death-rate deaths digestion diphtheria disinfection dust effects efficiency employed especially filtered water filters filtration formaldehyd fresh air gallons grams heat hygienic immune important impurities increased infected infectious diseases influence inspection kilograms locality malaria Marine-Hospital Service means meat method milk mosquitoes nature necessary nitrogen obtained officer organic matter oxygen parasites passengers patient persons pipe plague polluted port prevent produced proteid Public Health purification quarantine regulations removed salts sanitary scarlet fever serum sewage small-pox soil solution steam substances sulphur dioxid supply surface tank temperature tion tuberculosis typhoid fever typhus fever United vaccination vegetable ventilation vessel water-supply yellow fever
مقاطع مشهورة
الصفحة 444 - ... to be recovered by proceedings in the proper district court of the United States. In all such proceedings the United States district attorney for such district shall appear on behalf of the United States...
الصفحة 452 - Be it enacted by the Senate and House of Representatives of the United States of America in Congress assembled.
الصفحة 446 - Treasury weekly reports of the sanitary condition of the ports and places at which they are respectively stationed, according to such forms as the Secretary of the Treasury...
الصفحة 448 - An act granting additional quarantine powers and imposing additional duties upon the Marine Hospital Service...
الصفحة 486 - Treasury, necessary to prevent the introduction of contagious or infectious disea-ses into the United States from foreign countries or into one State or Territory or the District of Columbia...