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adapted adult alimentary canal allied America animals appear appendages attached become begins beneath birds blood body branches called canal carried cavity cells changes CHAPTER closely color common complete connection consists covered Definition digestive distributed division early earthworm eggs enlarged existence extend external eyes fact feed female fishes four gills glands grow habit hatch head important individuals insects intestine known larva later leaves legs less live locust lower male mass means mouth muscles Natural nest North observed opening organs pair pass period plants portion posterior present probably produced Professor protected region remains resemble secretion separate shell short shown side skin somites species stage stomach structure substance surface takes teeth tion tube United usually valves various ventral wings young
Էջ 16 - Lord cometh, for it is nigh at hand ; a day of darkness and of gloominess, a day of clouds and of thick darkness, as the morning spread upon the mountains: a great people and a strong; there hath not been ever the like, neither shall be any more after it, even to the years of many generations.
Էջ 15 - THE poetry of earth is never dead : When all the birds are faint with the hot sun, And hide in cooling trees, a voice will run From hedge to hedge about the new-mown mead ; That is the Grasshopper's — he takes the lead In summer luxury, — he has never done With his delights, for when tired out with fun, He rests at ease beneath some pleasant weed.
Էջ 192 - Year after year beheld the silent toil That spread his lustrous coil; Still, as the spiral grew, He left the past year's dwelling for the new, Stole with soft step its shining archway through, Built up its idle door, Stretched in his last-found home, and knew the old no more.
Էջ 27 - To-day I saw the dragon-fly Come from the wells where he did lie. "An inner impulse rent the veil Of his old husk : from head to tail Came out clear plates of sapphire mail. "He dried his wings: like gauze they grew: Thro' crofts and pastures wet with dew A living flash of light he flew.
Էջ 408 - They say, The solid earth whereon we tread In tracts of fluent heat began, And grew to seeming-random forms, The seeming prey of cyclic storms, Till at the last arose the man...
Էջ 105 - 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.
Էջ 395 - The object and purpose of this act is to aid in the restoration of such birds in those parts of the United States adapted thereto where the same have become scarce or extinct...
Էջ 103 - I should premise that I use the term Struggle for Existence in a large and metaphorical sense, including dependence of one being on another, and including (which is more important) not only the life of the individual, but success in leaving progeny.
Էջ 65 - Obedience ! for so work the honey-bees, Creatures that by a rule in nature teach The art of order to a peopled kingdom. They have a king and officers of sorts ; Where some, like magistrates, correct at home, Others, like merchants, venture trade abroad, Others, like soldiers, armed in their stings, Make boot upon the summer's velvet buds, Which pillage they with merry march bring...
Էջ 106 - This leads me to say a few words on what I have called Sexual Selection. This form ot selection depends, not on a struggle for existence in relation to other organic beings or to external conditions, but on a struggle between the individuals of one sex, generally the males, for the possession of the other sex.