The Descent of manD. Appleton and Company, 1871 |
From inside the book
Results 1-5 of 52
Page
... Action of the Conditions of Life . - Effects of the Increased Use and Disuse of Parts . - Arrested Development . - Reversion . — Cor- related Variation . - Rate of Increase . - Checks to Increase . - Natural Selection . - Man the most ...
... Action of the Conditions of Life . - Effects of the Increased Use and Disuse of Parts . - Arrested Development . - Reversion . — Cor- related Variation . - Rate of Increase . - Checks to Increase . - Natural Selection . - Man the most ...
Page
... Action of the Conditions of Life . - Slight or no Influence of Natural Selection . - Sexual Selection , • page 206 PART II . SEXUAL SELECTION . CHAPTER VIII . PRINCIPLES OF SEXUAL SELECTION . Secondary Sexual Characters . - Sexual ...
... Action of the Conditions of Life . - Slight or no Influence of Natural Selection . - Sexual Selection , • page 206 PART II . SEXUAL SELECTION . CHAPTER VIII . PRINCIPLES OF SEXUAL SELECTION . Secondary Sexual Characters . - Sexual ...
Page
... Action of the Conditions of Life . - Colors adapted for Pro- tection . - Colors of Moths . - Display . - Perceptive Powers of the Lepi- doptera . Variability . - Causes of the Difference in Color between the Males and Females ...
... Action of the Conditions of Life . - Colors adapted for Pro- tection . - Colors of Moths . - Display . - Perceptive Powers of the Lepi- doptera . Variability . - Causes of the Difference in Color between the Males and Females ...
Page 18
... action of muscles , but includes a diminished flow of blood to a part or organ , from being subjected to fewer alternations of pressure , or from becoming in any way less habitually active . Rudiments , however , may occur in one sex of ...
... action of muscles , but includes a diminished flow of blood to a part or organ , from being subjected to fewer alternations of pressure , or from becoming in any way less habitually active . Rudiments , however , may occur in one sex of ...
Page 19
... action . Prof. Turner , of Edinburgh , has occasionally detected , as he informs me , muscular fasciculi in five different situations , namely , in the axillæ , near the scapulæ , etc. , all of which must be referred to the system of ...
... action . Prof. Turner , of Edinburgh , has occasionally detected , as he informs me , muscular fasciculi in five different situations , namely , in the axillæ , near the scapulæ , etc. , all of which must be referred to the system of ...
Common terms and phrases
acquired adult apes appear B. A. Gould baboon Bates beautiful become beetles believe birds birth body breeds Brehm butterflies chapter civilized coccyx common conspicuous crustaceans degree developed distinct species doubt early progenitors elytra existence extremely fact faculties feel females fertility Fritz Müller genus given greater number habits hair Hist horns individuals inhabitants inherited insects instance kind lancelet large number larger larvæ latter Lemuroidea Lepidoptera less lower animals Lubbock males mammæ mammals manner Marsupials mental powers modified monkeys Monotremata moral moths muscles natural selection naturalists observed offspring organs Origin of Species ornaments Orthoptera pair period Plants under Domestication polygamous possess probably Proc produced Prof proportion Quadrumana races rasp remarks resemble respect rudimentary rudiments savages secondary sexual characters sexual selection skull social instincts stridulating structure surface sympathy tion transmitted tribe variability Variation of Animals various Vertebrates Wallace wings young Zoolog
Popular passages
Page 67 - I FULLY subscribe to the judgment of those writers ' who maintain that, of all the differences between man and the lower animals, the moral sense or conscience is by far the most important.
Page 70 - If, for instance, to take an extreme case, men were reared under precisely the same conditions as hive-bees, there can hardly be a doubt that our unmarried females would, like the worker-bees, think it a sacred duty to kill their brothers, and mothers would strive to kill their fertile daughters ; and no one would think of interfering.
Page 34 - The Fuegians rank amongst the lowest barbarians; but I was continually struck with surprise how closely the three natives on board HMS " Beagle," who had lived some years in England, and could talk a little English, resembled us in disposition and in most of our mental faculties.
Page 192 - The great break in the organic chain between man and his nearest allies, which cannot be bridged over by any extinct or living species, has often been advanced as a grave objection to the belief that man is descended from some lower form; but this objection will not appear of much weight to those who, from general reasons, believe in the general principle of evolution.
Page 57 - The formation of different languages and of distinct species, and the proofs that both have been developed through a gradual process, are curiously parallel.
Page 166 - This especially holds good with injurious characters which tend to reappear through reversion, such as blackness in sheep; and with mankind some of the worst dispositions, which occasionally without any assignable cause make their appearance in families, may perhaps be reversions to a savage state, from which we are not removed by very many generations.
Page 159 - It is obvious, that the members of the same tribe would approve of conduct which appeared to them to be for the general good, and would reprobate that which appeared evil. To do good unto others — to do unto others as ye would they should do unto you— is the foundation-stone of morality.
Page 161 - With savages, the weak in body or mind are soon eliminated; and those that survive commonly exhibit a vigorous state of health. We civilized men, on the other hand, do our utmost to check the process of elimination; we build asylums for the imbecile, the maimed, and the sick; we institute poor-laws; and our medical men exert their utmost skill to save the life of every one to the last moment.
Page 198 - The foot, judging from the condition of the great toe in the foetus, was then prehensile ; and our progenitors, no doubt, were Arboreal in their habits, frequenting some warm forest clad laud. The males were provided with great canine teeth, which served them as formidable weapons.