The Earth and Its Life

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World book Company, 1922 - Всего страниц: 207
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Стр. 47 - 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.
Стр. 51 - It may be metaphorically said that natural selection is daily and hourly scrutinizing, throughout the world, every variation, even the slightest ; rejecting that which is bad, preserving and adding up all that is good ; silently and insensibly working, whenever and wherever opportunity offers, at the improvement of each organic being in relation to its organic and inorganic conditions of life...
Стр. 47 - Beagle' as naturalist, I was much struck with certain facts in the distribution of the inhabitants of South America, and in the geological relations of the present to the past inhabitants of that continent. These facts seemed to me to throw some light on the origin of species — that mystery of mysteries, as it has been called by one of our greatest philosophers.
Стр. 47 - On my return home, it occurred to me, in 1837, that something might perhaps be made out on this question by patiently accumulating and reflecting on all sorts of facts which could possibly have any bearing on it. After five years...
Стр. 49 - Owing to this struggle, variations, however slight and from whatever cause proceeding, if they be in any degree profitable to the individuals of a species, in their infinitely complex relations to other organic beings and to their physical conditions of life, will tend to the preservation of such individuals, and will generally be inherited by the offspring.
Стр. 144 - The contents of a native woman's bag are : — A flat stone to pound roots with ; earth to mix with the pounded roots ; quartz, for the purpose of making spears and knives ; stones for hatchets ; prepared cakes of gum, to make and mend weapons, and implements ; kangaroo sinews to make spears and to sew with ; needles made of the shin bones of kangaroos, with which they sew their cloaks, bags, &c...
Стр. 181 - Dialogue concerning the Two Chief Systems of the World, the Ptolemaic and the Copernican, which he dedicated to the Pope.
Стр. 183 - taking mathematicians from the beginning of the world to the time when Newton lived, what he had done was much the better half.
Стр. 141 - IN the days when Bootoolgah, the crane, married Goonur, the kangaroo rat, there was no fire in their country. They had to eat their food raw or just dry it in the sun. One day when Bootoolgah was rubbing two pieces of wood together, he saw a faint spark sent forth and then a slight smoke. "Look," he said to Goonur, "see what comes when I rub these pieces of wood together-smoke!
Стр. 145 - To produce it they take two pieces of dry soft wood, one is a stick about eight or nine inches long, the other piece is flat : The stick they shape into an obtuse point at one end, and pressing it upon the other, turn it nimbly by holding it between both their hands as we do a chocolate mill, often shifting their hands up, and then moving them down upon it, to increase the pressure as much as possible. By this method they get fire in less than two minutes, and from the smallest spark they increase...

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