Footnotes to Evolution: A Series of Popular Addresses on the Evolution of Life |
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Page xi
... ancestors . Lineage of a little girl . All Englishmen of noble birth . Effect of primogeniture . Origin of the English character . Race types and the survival of the existing . VI . — THE PHYSICAL BASIS OF HEREDITY . By Professor Frank ...
... ancestors . Lineage of a little girl . All Englishmen of noble birth . Effect of primogeniture . Origin of the English character . Race types and the survival of the existing . VI . — THE PHYSICAL BASIS OF HEREDITY . By Professor Frank ...
Page 4
... ancestors have been . The meaning of homology . It is perfectly certain that homology represents some real law of Nature , something other than the results of mere chance . When I compare my arm with that of my neighbour , I find differ ...
... ancestors have been . The meaning of homology . It is perfectly certain that homology represents some real law of Nature , something other than the results of mere chance . When I compare my arm with that of my neighbour , I find differ ...
Page 26
... ancestors have done , so that the completed structures of their ancestors would be with them only a stage of development . And , as Professor Cope has shown , devel- opment may be hastened by the abridgment or omis- sion of useless ...
... ancestors have done , so that the completed structures of their ancestors would be with them only a stage of development . And , as Professor Cope has shown , devel- opment may be hastened by the abridgment or omis- sion of useless ...
Page 27
... ancestors , a mosaic of the char- acters of its parents and its parents ' parentage . By the fact of sex no individual can be the mere slavish copy of any other . Through the operation of sex the law . of heredity which is to promote ...
... ancestors , a mosaic of the char- acters of its parents and its parents ' parentage . By the fact of sex no individual can be the mere slavish copy of any other . Through the operation of sex the law . of heredity which is to promote ...
Page 37
... ancestors with the harm- ful stages abbreviated or suppressed . The young frog has the ancestral gill of the fish and so has the human child in embryo . This stage is useful to the frog ; it is not harmful to the unborn child . It is ...
... ancestors with the harm- ful stages abbreviated or suppressed . The young frog has the ancestral gill of the fish and so has the human child in embryo . This stage is useful to the frog ; it is not harmful to the unborn child . It is ...
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Common terms and phrases
acquired characters action adaptation altruism ammonites ammonoids ancestors animals become belief biology birds blood body Brachiopoda brain causes centrosome chromatin chromosomes competition concessions creation creatures cytoplasm Darwin degeneration degree descendants division egg cell elements ence environment evidence extrinsic fact factors fishes fittest food yolk force forms function germ cell germinal Glyphioceras growth Herbert Spencer hereditary heredity higher homology impulses increase individual influence inheritance instinct knowledge larvæ less living means ment mind monism natural selection naturalists nerve nervous never nucleus organic evolution Origin of Species parent pauperism phenomena philosophy plants Plate possible produced progress protoconch protoplasm protozoa race recognised relations religion Richard Roe Sacculina says sensation sense shown simple special creation species stage structure struggle for existence survival theory things tion true truth ture variation vertebræ weakness Weismann woman women words
Popular passages
Page 49 - There is grandeur in this view of life, with its several powers, having been originally breathed by the Creator into a few forms or into one; and that, whilst this planet has gone cycling on according to the fixed law of gravity, from so simple a beginning endless forms most beautiful and most wonderful have been, and are being evolved.
Page 18 - Hence, as more individuals are produced than can possibly survive, there must in every case be a struggle for existence, either one individual with another of the same species, or with the individuals of distinct species, or with the physical conditions of life.
Page 49 - To my mind it accords better with what we know of the laws impressed on matter by the Creator, that the production and extinction of the past and present inhabitants of the world should have been due to secondary causes, like those determining the birth and death of the individual.
Page 268 - ... of each and all of us is to try to make the little corner he can influence somewhat less miserable and somewhat less ignorant than it was before he entered it. To do this effectually it is necessary to be fully possessed of only two beliefs: the first, that the order of nature is ascertainable by our faculties to an extent which is practically unlimited; the second, that our volition counts for something as a condition of the course of events.
Page 268 - We live in a world which is full of misery and ignorance, and the plain duty of each and all of us is to try to make the little corner he can influence somewhat less miserable and somewhat less ignorant than it was before he entered it.
Page 17 - Two canine animals, in a time of dearth, may be truly said to struggle with each other which shall get food and live. But a plant on the edge of a desert is said to struggle for life against the drought, though more properly it should be said to be dependent on the moisture.
Page 88 - It is good to make two blades of grass grow where only one grew before.
Page 268 - ... x's and y's with which he works his problems, for real entities — and with this further disadvantage, as compared with the mathematician, that the blunders of the latter are of no practical consequence, while the errors of systematic materialism may paralyse the energies and destroy the beauty of a life.
Page 206 - That lay in the house that Jack built. This is the cow with the crumpled horn, That tossed the dog, That worried the cat, That killed the rat, That ate the malt, That lay in the house that Jack built.
Page 14 - These facts, as will be seen in the latter chapters of this volume, seemed to throw some light on the origin of species -- that mystery of mysteries, as it has been called by one of our greatest philosophers.