Micro-organisms in Water: Their Significance, Identification and RemovalLongmans, 1894 - 532 páginas |
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Página 8
... visible to the naked eye . On the other hand , those which were collected in the liquid had no such restrictions imposed upon their movements , and , being free to traverse the whole extent of the liquid , multiplied indiscriminately in ...
... visible to the naked eye . On the other hand , those which were collected in the liquid had no such restrictions imposed upon their movements , and , being free to traverse the whole extent of the liquid , multiplied indiscriminately in ...
Página 29
... visible with the microscope in each square , the number in the particular volume of liquid is determined . Hansen also successfully employed this dilution method in his first preparation of pure cultures of yeast in 1882 , using the ...
... visible with the microscope in each square , the number in the particular volume of liquid is determined . Hansen also successfully employed this dilution method in his first preparation of pure cultures of yeast in 1882 , using the ...
Página 32
... visible , and to separate out some of these different varieties we abstract a small quantity of the liquid by means of a sterilised instrument . For this purpose a piece of platinum - wire about of an inch in thickness and about three ...
... visible , and to separate out some of these different varieties we abstract a small quantity of the liquid by means of a sterilised instrument . For this purpose a piece of platinum - wire about of an inch in thickness and about three ...
Página 36
... visible in the field , the above instrument is approached until the extremity of the needle can be seen with the naked eye to be in the vicinity of the colony in question , but clear of the gelatine - film . The operator then makes the ...
... visible in the field , the above instrument is approached until the extremity of the needle can be seen with the naked eye to be in the vicinity of the colony in question , but clear of the gelatine - film . The operator then makes the ...
Página 270
... visible fermentation by the B. coli communis to take place . The bubbles of gas are certainly independent of any ingredients present in either the gelatine or in the peptone , for we have found them to form in agar - agar- peptone ( of ...
... visible fermentation by the B. coli communis to take place . The bubbles of gas are certainly independent of any ingredients present in either the gelatine or in the peptone , for we have found them to form in agar - agar- peptone ( of ...
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Micro-Organisms in Water: Their Significance, Identification and Removal ... Percy Frankland Sin vista previa disponible - 2022 |
Términos y frases comunes
acid agar-agar AGAR-AGAR.-Forms aniline Bakterien becomes Beggiatoa bottom bouillon broth c.c. of water cent centre Chemnitz cholera bacilli circular cocci colour containing cover-glass Crown 8vo cubic centimetre Cultures depth colonies diplococci distilled water examined experiments filter beds filtered water filtration flasks flocculent forms Found.-In GELATINE PLATES GELATINE PLATES.-Forms GELATINE TUBES.-Forms granular greyish grows growth Illustrations incubator inoculated insolation investigations irregular large number later lime liquefaction liquefaction takes place LIQUEFIES GELATINE Authority liquid low power method microbes Microscopic Appearance motile needle's path number of bacteria number of micro-organisms obtained organisms Ourcq pathogenic pellicle peptone Percy Frankland periphery potato produced resembling river River Thames rounded ends samples sewage shining solution spirilla spirillum stain sterile sterilised surface colonies temperature tetanus Thames water threads tion tubes turbid typhoid bacillus Ueber unfiltered water unsterilised visible whilst white expansion yellow yellowish Zeitschrift für Hygiene
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