Public health laboratory work, including methods employed in bacteriological research, with special reference to the examination of air, water and food contributedBlakiston, 1893 - 491 pages |
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Page 11
... containing liquids are made to stand in or over the water thus heated , evaporation of their fluid con- tents may be ... contain a trace of moisture , it is therefore subsequently transferred to the oven , where absolute drying can be ...
... containing liquids are made to stand in or over the water thus heated , evaporation of their fluid con- tents may be ... contain a trace of moisture , it is therefore subsequently transferred to the oven , where absolute drying can be ...
Page 28
... contain the specific germs of disease , and that therefore it is only from the results of a bacteriological combined with a chemical examination , that a water may ever be classi- fied as safe . At present , however , there are many ...
... contain the specific germs of disease , and that therefore it is only from the results of a bacteriological combined with a chemical examination , that a water may ever be classi- fied as safe . At present , however , there are many ...
Page 30
... containing chlorophyll , which will generally be found to mainly consist of the harmless unicellular algæ . The ... contain large quantities of any ingredient for its presence to be detected by this means , and as an indi- cation of ...
... containing chlorophyll , which will generally be found to mainly consist of the harmless unicellular algæ . The ... contain large quantities of any ingredient for its presence to be detected by this means , and as an indi- cation of ...
Page 31
... containing them are frequently patronised by the public in preference to those which contain much purer waters . It is not advisable in every case to taste samples sent for analysis , and the analyst must exercise his discretion from ...
... containing them are frequently patronised by the public in preference to those which contain much purer waters . It is not advisable in every case to taste samples sent for analysis , and the analyst must exercise his discretion from ...
Page 32
... contain no smell whatever it seems unnecessary to define an odour when it exists , more especially as it can rarely give any clue as to the nature of the pollution . It is far better that the analyst describes the odour in his own words ...
... contain no smell whatever it seems unnecessary to define an odour when it exists , more especially as it can rarely give any clue as to the nature of the pollution . It is far better that the analyst describes the odour in his own words ...
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Common terms and phrases
acetic added adulteration alcohol alkaline alum ammonia ammonium sulphide amount analysis animal apparatus appearance atmosphere blue boiling bottle burette butter c.c. of water calcium calcium carbonate carbonic acid cells cent chemical chlorine coal gas collected colour contain copper created cubic cubic centimetres detected dilute dissolved distilled water employed estimation evaporation flask flour gases gelatine grammes granules hydrochloric acid insoluble iron lime liquid liquor potassæ litre magnesium meat method micro-organisms milk milligramme mineral necessary Nessler glass nitrates and nitrites nitrogen nitrous acid odour organic matter oxide oxidised oxygen permanganate placed platinum dish poisonous metals pollution potassium precipitate present pure quantities reaction reagent residue salts sample sediment silica silver nitrate smell sodium carbonate soil soluble specific gravity standard solution starch sterilised substance sugar sulphate sulphuretted hydrogen sulphuric acid temperature tion total solids tube vapour vegetable washed weight yellow zinc
Popular passages
Page 417 - ... that he had no reason to believe at the time when he sold it that the article was otherwise, and that he sold it in the same state as when he purchased it, he shull be discharged from the prosecution, but shall be liable to pay the costs incurred by the prosecutor, unless he shall have given due notice to him that he will rely on the above defence.
Page 341 - ... diseased, or unsound, or unwholesome, or unfit for the food of man, he may seize and carry away the same himself or by an assistant, in order to have the same dealt with by a justice.
Page 495 - The Diseases of Women. Including Diseases of the Bladder and Urethra. By DR. F. WINCKEL, Professor of Gynaecology and Director of the Royal University Clinic for Women, in Munich.
Page 495 - English Edition, revised and improved. 758 pages. This volume was specially prepared to furnish students with a new text-book of Physiology, elementary so far as to avoid theories which have not borne the test of time and such details of methods as are unnecessary for students in our medical colleges.