Elementary BacteriologyLongmans, Green, 1903 - 145 páginas |
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Página 17
... soil and climatic conditions . But even with this limitation they have an immense range of usefulness in the scientific working of fermentative industries . THE MORPHOLOGY OF BACTERIA . BACTERIA are the smallest and 2 FERMENTATION 17.
... soil and climatic conditions . But even with this limitation they have an immense range of usefulness in the scientific working of fermentative industries . THE MORPHOLOGY OF BACTERIA . BACTERIA are the smallest and 2 FERMENTATION 17.
Página 36
... soil . How are these changes brought about ? The hard woody substance is first soft- ened by various fungi which grow into it ; next wood- eating insects appear ; and finally bacteria complete the decomposition . A similar dissolution ...
... soil . How are these changes brought about ? The hard woody substance is first soft- ened by various fungi which grow into it ; next wood- eating insects appear ; and finally bacteria complete the decomposition . A similar dissolution ...
Página 37
... soil , vegetation would cease , and even animal life would become impossible . It must not , however , be supposed that any new material is created by the micro - organisms concerned . It is the same food which is used over and over ...
... soil , vegetation would cease , and even animal life would become impossible . It must not , however , be supposed that any new material is created by the micro - organisms concerned . It is the same food which is used over and over ...
Página 38
... soils can be easily shown by analysing , at intervals , a definite quantity of soil , when an increase of nitrates will be observed after a few weeks . Now , if one portion of the soil is sterilised and the rest not so treated , the ...
... soils can be easily shown by analysing , at intervals , a definite quantity of soil , when an increase of nitrates will be observed after a few weeks . Now , if one portion of the soil is sterilised and the rest not so treated , the ...
Página 39
... Soil bacteria and Legumes Nitites Plant Life Nitric bacteria Nitrates ( In soil ) FIG . 3. - The Nitrogen Cycle . Loss of Nitrogen . - Sometimes the process of nitrifica- tion is reversed , and nitrates are reduced to nitrites , and ...
... Soil bacteria and Legumes Nitites Plant Life Nitric bacteria Nitrates ( In soil ) FIG . 3. - The Nitrogen Cycle . Loss of Nitrogen . - Sometimes the process of nitrifica- tion is reversed , and nitrates are reduced to nitrites , and ...
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Términos y frases comunes
albumin alcohol aniline animals anthrax antitoxin B.Sc bacilli bacteria Bacteriology body BOTANY cells CHEMICAL CHEMISTRY cholera cocci coli College Coloured containing Crown 8vo Curtis's Essentials D.Sc Diagrams diphtheria diplococci disease disinfectants Edition ELECTRICITY ELEMENTARY PRACTICAL Engineer Essentials of Practical Examination experimental fermentation fever flagella fluid form spores gelatine GEOMETRY germ germicidal give rise grow growth heat Hospital Illus Illustrations immunity infection inoculation INORGANIC intestinal INTRODUCTION JOHN laboratory lactic Lecturer LL.D Lond London malaria malarial Manual matter MECHANICS method methylene blue microbes microscope milk mosquito nitrification nitrogen numerous Examples organisms oxygen parasite pathogenic Ph.D PHYSICS PHYSIOLOGY pigment plants Plates Practical Bacteriology produced Professor protoplasm pure cultures putrefactive pyogenes Royal 8vo School Science soil solution species spirillum spores sputum stained sterilised streptococcus pyogenes Students substances temperature TEXT-BOOK tion tissues toxins trations TREATISE tubercle tuberculosis typhoid typhosus University vegetable venom vibrios WILLIAM Woodcuts yeast
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