The Principles of hygieneW.B. Saunders, 1901 - 495 pages |
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Page 19
... increases with the density of the population , but not in direct proportion to the density , but as its sixth root . The exciting causes of disease are the specific elements which are the etiologic factors in the production of dis- ease ...
... increases with the density of the population , but not in direct proportion to the density , but as its sixth root . The exciting causes of disease are the specific elements which are the etiologic factors in the production of dis- ease ...
Page 31
... increases as we descend below its level . The several gases composing the atmosphere are not in chemical combination with each other , but exist as a more or less homogeneous mixture . The principal gases in the mixture are : Nitrogen ...
... increases as we descend below its level . The several gases composing the atmosphere are not in chemical combination with each other , but exist as a more or less homogeneous mixture . The principal gases in the mixture are : Nitrogen ...
Page 32
... increases . It is least in winter and greatest in autumn ; less during the day than at night ; less on the seacoast than ... increased during foggy weather . The relative proportions of oxygen and carbon dioxid are maintained through the ...
... increases . It is least in winter and greatest in autumn ; less during the day than at night ; less on the seacoast than ... increased during foggy weather . The relative proportions of oxygen and carbon dioxid are maintained through the ...
Page 34
... increased or decreased tension of the atmosphere . Rarefied air as found at great heights induces a condition known as mountain sickness or bal- loon sickness , and consists in increased heart action , more rapid respiration , headache ...
... increased or decreased tension of the atmosphere . Rarefied air as found at great heights induces a condition known as mountain sickness or bal- loon sickness , and consists in increased heart action , more rapid respiration , headache ...
Page 35
David Hendricks Bergey. symptoms as the rarefaction increases , such as vomiting of food , bile , and blood , with great ... increased pressure causes the sudden liberation of gases in the tissues and blood , where they interfere with the ...
David Hendricks Bergey. symptoms as the rarefaction increases , such as vomiting of food , bile , and blood , with great ... increased pressure causes the sudden liberation of gases in the tissues and blood , where they interfere with the ...
Common terms and phrases
ammonia amount animals antitoxin bacillus bacteria baggage bichlorid of mercury Board of Health body boiling calories carbolic acid carbon dioxid cargo cause cent centimeters cholera clean Clinical Cloth color contained cubic centimeters cubic meters death-rate deaths diet digestion diphtheria discharged disinfection dust Edition effects epidemic exposure filter filtration Fomites formaldehyd fresh air grams heat Hospital hygienic immunity important impurities infected infectious diseases influence inspection kilograms liters means meat Medical Medicine method milk mosquitoes nature nitrogen octavo organic matter oxygen passengers persons pipe polluted port prevent produced Professor proteid purification quarantine quarantine officer regulations removed salts sanitary scarlet fever sewage small-pox soil solution of bichlorid steam steerage substances sulphur dioxid supply surface Surgery tank temperature Text-Book tion tuberculosis typhoid fever typhus fever United vaccination vegetable ventilation vessel water-supply weight yellow fever