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 |
From inside the book
Results 1-5 of 32
Page 3
... removal is made the scales must be brought to rest upon their supports , or the apparatus may be put out of gear . Each of the weights is marked , as the plan of the box will best show ( fig . 4 ) . B 2 HYGIENIC ANALYSIS OF WATER . 3.
... removal is made the scales must be brought to rest upon their supports , or the apparatus may be put out of gear . Each of the weights is marked , as the plan of the box will best show ( fig . 4 ) . B 2 HYGIENIC ANALYSIS OF WATER . 3.
Page 5
... removed , and a five deci- gramme weight ( i.e. , grm . ) substituted . The platinum dish is still slightly the heavier , there- fore another decigramme is added , with the result that the weights now slightly overbalance the dish . The ...
... removed , and a five deci- gramme weight ( i.e. , grm . ) substituted . The platinum dish is still slightly the heavier , there- fore another decigramme is added , with the result that the weights now slightly overbalance the dish . The ...
Page 22
... with regard to those wells from which the water is removed by pumping , it is advisable to continue the pro- cess for some time , but not longer than is commonly done in the ordinary course of events ; -as the 22 LABORATORY WORK .
... with regard to those wells from which the water is removed by pumping , it is advisable to continue the pro- cess for some time , but not longer than is commonly done in the ordinary course of events ; -as the 22 LABORATORY WORK .
Page 31
... removing the stopper . For most practical purposes , however , it will suffice if the sample is smelt after it has been thoroughly shaken , and it is only necessary when a suspicion remains after this procedure to resort to the plan of ...
... removing the stopper . For most practical purposes , however , it will suffice if the sample is smelt after it has been thoroughly shaken , and it is only necessary when a suspicion remains after this procedure to resort to the plan of ...
Page 43
... removal . 3. The boiling flask is then tightly connected by the cork with the Graham's condenser , -tightly in order that uncondensed vapour shall not escape at this point . The Bunsen burner is next lighted , the flame applied to the ...
... removal . 3. The boiling flask is then tightly connected by the cork with the Graham's condenser , -tightly in order that uncondensed vapour shall not escape at this point . The Bunsen burner is next lighted , the flame applied to the ...
Contents
70 | |
83 | |
91 | |
94 | |
99 | |
104 | |
118 | |
130 | |
139 | |
140 | |
146 | |
155 | |
161 | |
180 | |
187 | |
219 | |
231 | |
341 | |
355 | |
362 | |
372 | |
379 | |
386 | |
395 | |
406 | |
413 | |
419 | |
433 | |
444 | |
451 | |
457 | |
465 | |
483 | |
489 | |
Other editions - View all
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 potassę 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.