Air, Water, and Food from a Sanitary StandpointJ. Wiley & sons, 1909 - 278 sider |
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Side 3
... pure air , than when it is present in lessened quantity , as in air vitiated by foreign substances . Individual habit has much to do with the appreciation of good air , and as our knowledge of the value of an abun- dance of this ...
... pure air , than when it is present in lessened quantity , as in air vitiated by foreign substances . Individual habit has much to do with the appreciation of good air , and as our knowledge of the value of an abun- dance of this ...
Side 5
... Pure water is found only in the chemical laboratory ; the most that can be hoped for is that human beings may secure for themselves water which is safe to drink , which will not impair the efficiency of the human machine . V The ...
... Pure water is found only in the chemical laboratory ; the most that can be hoped for is that human beings may secure for themselves water which is safe to drink , which will not impair the efficiency of the human machine . V The ...
Side 14
... pure air the greatest , and also when economy of effort is most demanded . It has been said that from the study of the physiological effects of close air it seems to be indicated that the evil is due to the change in the respiratory ...
... pure air the greatest , and also when economy of effort is most demanded . It has been said that from the study of the physiological effects of close air it seems to be indicated that the evil is due to the change in the respiratory ...
Side 61
... pure " water is found only in the laboratory , " safe " water , that which is reasonably free from objection- able substances , mineral and organic , may be obtained with sufficient care and knowledge . A clear understanding of the ...
... pure " water is found only in the laboratory , " safe " water , that which is reasonably free from objection- able substances , mineral and organic , may be obtained with sufficient care and knowledge . A clear understanding of the ...
Side 62
... pure . Furthermore , rain falling on insoluble rocks , bare or lichen - covered , or on loose , sandy soils , washes them also , giving up to the vegetation the ammonia and taking in re- turn carbon dioxide and dissolved albuminoid ...
... pure . Furthermore , rain falling on insoluble rocks , bare or lichen - covered , or on loose , sandy soils , washes them also , giving up to the vegetation the ammonia and taking in re- turn carbon dioxide and dissolved albuminoid ...
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Air, Water, and Food from a Sanitary Standpoint Ellen Henrietta Richards,Alpheus Grant Woodman Uten tilgangsbegrensning - 1909 |
Air, Water and Food from a Sanitary Standpoint Ellen Henrietta Richards,Alpheus Grant Woodman Uten tilgangsbegrensning - 1911 |
Air, Water, and Food from a Sanitary Standpoint Ellen Henrietta Richards,Alpheus Grant Woodman Uten tilgangsbegrensning - 1909 |
Vanlige uttrykk og setninger
acetic adulterated alcohol algæ alkaline ammonia ammonium amount apparatus barium hydroxide beaker boiling bottle burette butter c.c. of water carbon dioxide casein cent Chem Chemistry chlorine color compounds contain cubic centimeters determination digestion dilute dish dissolved distilled water Elements Engineering ether evaporate extract Fehling's solution filter filtrate flask glass grams heat human hydrochloric acid ignited inches iodine laboratory Large 12mo liquid liter Manual Materials Mechanics method micro-organisms milk mineral minutes Nessler nitric acid nitrogen obtained odor organic matter oxidation oxygen phenolphthalein pipette platinum polluted portion potassium precipitate present proteids quantity residue rubber salts sample Sanitary sewage shaking sodium carbonate sodium hydroxide solids soluble solution specific gravity standard starch stopper stream substances sugar sulphate sulphuric acid surface-waters Tables temperature Text-book thiosulphate tion titration Treatise tube vanillin vegetable volume wash water-bath water-supply weight wine ΙΟ
Populære avsnitt
Side 160 - 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 157 - 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...