The Elements of Hygiene for SchoolsMacmillan, 1909 - 172 sider |
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Side 4
... carried through the air only by becoming ad- herent to particles of dust , hence the great danger of any accumulation of dust which might carry the bac- teria of disease . Bacteria are found in greatest abundance in decaying vegetable ...
... carried through the air only by becoming ad- herent to particles of dust , hence the great danger of any accumulation of dust which might carry the bac- teria of disease . Bacteria are found in greatest abundance in decaying vegetable ...
Side 55
... carried some distance by the winds , are washed out of the air by rain or snow , and may be killed by exposure to sunlight . It is a question still in doubt , whether disease germs ( pathogenic organisms ) are ever found in the air ...
... carried some distance by the winds , are washed out of the air by rain or snow , and may be killed by exposure to sunlight . It is a question still in doubt , whether disease germs ( pathogenic organisms ) are ever found in the air ...
Side 63
... carried out under favorable circumstances , but in winter this is impossible in the majority of dwellings . The space allowed for each person may be less for large assembly halls than for living rooms , as it is much easier to change ...
... carried out under favorable circumstances , but in winter this is impossible in the majority of dwellings . The space allowed for each person may be less for large assembly halls than for living rooms , as it is much easier to change ...
Side 66
... carried on to some extent , the filtration being either through water or cloth . " In the building of the American Bell Telephone Co. in Boston the air is drawn into and through a system of large cotton bags 30 feet in length , in which ...
... carried on to some extent , the filtration being either through water or cloth . " In the building of the American Bell Telephone Co. in Boston the air is drawn into and through a system of large cotton bags 30 feet in length , in which ...
Side 68
... carried by flues from a central heating point to various rooms of a building , such as a hot - air furnace . Direct - indirect radiation is where the heating surfaces are in the rooms , with the addition of an arrangement for admitting ...
... carried by flues from a central heating point to various rooms of a building , such as a hot - air furnace . Direct - indirect radiation is where the heating surfaces are in the rooms , with the addition of an arrangement for admitting ...
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Vanlige uttrykk og setninger
acid adulterated alcohol amount animal anthrax atmosphere bacilli bacteria body boiling buildings carbohydrates carbolic acid carbon dioxide cause cent chemical cholera cities clean cleanliness climate clothing cold combustion common contains cooking daily danger diet diphtheria discharges disinfectant dust dwellings easily digested filter filth filtration fish flavor formaldehyde foul fresh fruit furnaces garbage germs habits heating household impure air infected infectious diseases injurious to health inlet juices kidneys kitchen large number less light malaria meat mechanical ventilation mental method milk mineral nitrogen occupation odors organic matter oxygen pathogenic persons placed plumbing poisonous polluted Practical Hygiene prevent produce proteids pure putrefaction quantities radiation remove respiration roast salt saprophytic scarlet fever sewage sewer soil air steam sterilized stoves substances surface temperature tetanus tion trap tuberculosis typhoid fever usually vegetable ventilation walls washed water supply yellow fever
Populære avsnitt
Side 50 - In the case of mixtures or compounds which may be now or from time to time hereafter known as articles of food, under their own distinctive names, and not an imitation of or offered for sale under the distinctive name of another article, if the name be accompanied on the same label or brand with a statement of the place where said article has been manufactured or produced.
Side 48 - Second — If any substance has been substituted wholly or in part for the article. Third — If any valuable constituent of the article has been wholly or in part extracted. Fourth — If it be mixed, colored, powdered, coated, 'or stained in a manner whereby damage or inferiority is concealed.
Side 45 - If any substance or substances have been mixed with it, so as to lower or depreciate, or injuriously affect its quality, strength, or purity; (2) If any inferior or cheaper substance, or substances have been substituted wholly or in part for it; (3) If any valuable or necessary constituent or ingredient has been wholly or in part abstracted from it...
Side 50 - That the term, blend as used herein shall be construed to mean a mixture of like substances, not excluding harmless coloring or flavoring ingredients used for the purpose of coloring and flavoring only: And...
Side 48 - That for the purposes of this act an article shall be deemed to be adulterated: In case of drugs: First, If, when a drug is sold under or by a name recognized In the United States Pharmacopoeia...
Side 48 - ... external application applied in such manner that the preservative is necessarily removed mechanically, or by maceration in water, or otherwise, and directions for the removal of said preservative...
Side 48 - If it consists in whole or in part of a filthy, decomposed, or putrid animal or vegetable substance, or any portion of an animal unfit for food, whether manufactured or not, or if it is the product of a diseased animal, or one that has died otherwise than by slaughter. SEC. 8. That the term "misbranded...
Side 49 - misbranded," as used herein, shall apply to all drugs, or articles of food, or articles which enter into the composition of food, the package or label of which shall bear any statement, design, or device regarding such article, or the ingredients or substances contained therein which shall be false or misleading in any particular, and to any food or drug product which is falsely branded as to the State, Territory, or country in which it is manufactured or produced.
Side 49 - If the package containing it or its label shall bear any statement, design or device regarding the ingredients or the substance contained therein which statement, design or device shall be false or misleading in any particular...
Side 46 - If any inferior or cheaper substance or substances have been substituted wholly or in part for it. (3) If any valuable or necessary constituent or ingredient has been wholly or in part abstracted from it. (4) If it is an imitation of or is sold under the name of another article.