Evolution and the Origin of LifeMacmillan, 1874 - Всего страниц: 186 |
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Стр. 16
... forces of the atoms and molecules " entering into their composition . And yet he , too , would have us believe that whilst differences in degree of mole- cular complexity alone separate living from not - living Fragments of Science ...
... forces of the atoms and molecules " entering into their composition . And yet he , too , would have us believe that whilst differences in degree of mole- cular complexity alone separate living from not - living Fragments of Science ...
Стр. 34
... force . He attempted ( very inconsistently , as it appears to me ) to meet it by supposing that living matter may escape increasing organisation so long as it can avoid the influence of gross changes in ' external conditions ' ; and ...
... force . He attempted ( very inconsistently , as it appears to me ) to meet it by supposing that living matter may escape increasing organisation so long as it can avoid the influence of gross changes in ' external conditions ' ; and ...
Стр. 36
... force necessitate this . Setting external agencies aside , each unit of a homo- geneous whole must be differently affected from any of the rest by the aggregate action of the rest upon it . The resultant forces exercised by the ...
... force necessitate this . Setting external agencies aside , each unit of a homo- geneous whole must be differently affected from any of the rest by the aggregate action of the rest upon it . The resultant forces exercised by the ...
Стр. 48
... force upon them . They behave in the most inconsistent manner , and , in dealing with these facts imperilling their old prepossessions , they find it convenient to forget for the time and occasion the ordi- nary rules of scientific ...
... force upon them . They behave in the most inconsistent manner , and , in dealing with these facts imperilling their old prepossessions , they find it convenient to forget for the time and occasion the ordi- nary rules of scientific ...
Стр. 51
... force . The analogy tending to support the first hypothesis * See “ The Beginnings of Life , " vol . i . pp . 292 , et seq . is drawn from the essential similarity existing between living matter E 2 ORIGIN OF LIFE . 51.
... force . The analogy tending to support the first hypothesis * See “ The Beginnings of Life , " vol . i . pp . 292 , et seq . is drawn from the essential similarity existing between living matter E 2 ORIGIN OF LIFE . 51.
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Часто встречающиеся слова и выражения
8th day Allotropism amongst animal appear Archebiosis and Heterogenesis Bacteria and Vibriones believe boiling water concerning conclusion crystalline matter dead organic death-point degree of heat Desmids destructive influence doctrine eggs evidence Evolution Evolution Philosophy Evolutionist ex vivo existence exposed fact favour ferments flasks forms germs of Bacteria growth hay-infusions heated to 140 Homogenesis hypothesis influence of heat infusion of hay Infusoria inoculating compound kind less living ferments living matter living organisms living things living units lowest organisms Max Schultze minutes mode of origin moist molecular multiplication not-living observation occur occurrence of Archebiosis organic infusions organic matter Owens College particles Pasteur phenomena pre-existing present occurrence previously boiled Professor Huxley protoplasm proved putrefaction question reason resisting heat Rotifers saline solutions scientific seeds similar Spallanzani spontaneous supposed germs supposition temperature of 140 tion Torula turbid turnip Turnip-infusions vivum ex vivo whilst
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Стр. 32 - As all the living forms of life are the lineal descendants of those which lived long before the Cambrian epoch, we may feel certain that the ordinary succession by generation has never once been broken, and that no cataclysm has desolated the whole world.
Стр. 12 - I believe that animals have descended from at most only four or five progenitors, and plants from an equal or lesser number. " Analogy would lead me one step further, namely, to the belief that all animals and plants have descended from some one prototype.
Стр. 138 - A few naturalists, endowed with much flexibility of mind, and who have already begun to doubt the immutability of species, may be influenced by this volume; but I look with confidence to the future, to young and rising naturalists, who will be able to view both sides of the question with impartiality.
Стр. 55 - But though we have always a propensity to generalize from unvarying experience, we are not always warranted in doing so. Before we can be at liberty to conclude that something is universally true because we have never known an instance to the contrary, we must have reason to believe that if there were in nature any instances to the contrary, we should have known of them.
Стр. 25 - ... chemical and physical qualities of the surrounding medium. But if, in the present state of science, the alternative is offered us, either germs can stand a greater heat than has been supposed, or the molecules of dead matter, for no valid or intelligible reason that is assigned, are able to rearrange themselves into living bodies, exactly such as can be demonstrated to be frequently produced in another way, I cannot understand how choice can be, even for a moment, doubtful.
Стр. 31 - Carbon, hydrogen, oxygen, and nitrogen are all lifeless bodies. Of these, carbon and oxygen unite in certain proportions and under certain conditions, to give rise to carbonic acid ; hydrogen and oxygen produce water ; nitrogen and hydrogen give rise to ammonia. These new compounds, like the elementary bodies of which they are composed, are lifeless. But when they are brought together, under certain conditions they give rise to the still more complex body, protoplasm, and this protoplasm exhibits...