The Principles of hygieneW.B. Saunders Company, 1914 - 525 pages |
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Page 12
... Nitrogen , 239. - Amount of Exercise that Should Be Taken , 240 . 171 176 235 CHAPTER IX . CLOTHING .. 243 Protection against Cold , 243. - Protection against Heat , 244. - Pro- tection against Dampness , 244. — Protection against ...
... Nitrogen , 239. - Amount of Exercise that Should Be Taken , 240 . 171 176 235 CHAPTER IX . CLOTHING .. 243 Protection against Cold , 243. - Protection against Heat , 244. - Pro- tection against Dampness , 244. — Protection against ...
Page 32
... nitrogen in natural air varies only within extremely narrow limits . It is an indifferent gas , and seems to serve principally as a diluent for the oxygen in the air . So far as known , the only biologic signifi- cance of nitrogen is ...
... nitrogen in natural air varies only within extremely narrow limits . It is an indifferent gas , and seems to serve principally as a diluent for the oxygen in the air . So far as known , the only biologic signifi- cance of nitrogen is ...
Page 33
... nitrogen is also stored in the soil by certain soil bacteria and in turn vegetation . obtains this nitrogen as food in the form of nitrates and ammonia . Argon , neon , erythron , and krypton are like- wise inert gases so far as known ...
... nitrogen is also stored in the soil by certain soil bacteria and in turn vegetation . obtains this nitrogen as food in the form of nitrates and ammonia . Argon , neon , erythron , and krypton are like- wise inert gases so far as known ...
Page 53
... nitrogen is generally increased , but sometimes diminished . ( 8 ) The oxygen is diminished to about 16 per cent . There is an addition to the air of ( 9 ) hydrogen , ( 10 ) marsh gas , and ( 11 ) or- ganic matter . Of these alterations ...
... nitrogen is generally increased , but sometimes diminished . ( 8 ) The oxygen is diminished to about 16 per cent . There is an addition to the air of ( 9 ) hydrogen , ( 10 ) marsh gas , and ( 11 ) or- ganic matter . Of these alterations ...
Page 71
... 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 ...
Common terms and phrases
acid ammonia amount animal apparatus bacillus bacteria blood body calories carbolic acid carbon dioxid cause cent centimeters chemical chlorid cholera climate clothing contained cubic meters death-rate deaths diet digestion diphtheria disinfection dust effects employed especially filter filtration fleas formaldehyd frequently fresh air grams Gynecology heat hygienic immunity important impurities increased infection infectious diseases influence injurious inspection Isolation and disinfection kilograms locality malaria Marine-Hospital Service meat method milk mosquitoes nature necessary nitrogen Obstetrics obtained organic matter oxygen parasites passengers patient persons pipe plague poisonous polluted port prevent produced proteid Public Health purification quantity quarantine quarantine officer quarantine station rats regulations removed salts sanitary scarlet fever serum sewage small-pox soil solution steam substances sulphur dioxid supply surface tank temperature tion tuberculosis typhoid fever United vaccination vegetable ventilation vessel weight yellow fever
Popular passages
Page 457 - Be it enacted by the Senate and House of Representatives of the United States of America in Congress assembled.
Page 453 - An act granting additional quarantine powers and imposing additional duties upon the Marine Hospital Service...
Page 499 - 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...