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action adapted animal animal bodies apparatus argument artery articulation auricle ball and socket birds blood bolt-rope bones brane called carried cartilage cavity chyle constitution contraction contrivance cornea curious degree direction distinct drupeds effect elastic eustachian tube evident feather fibres fins fish fluid force gastric juice gland head heart hinge-joint insects instance instrument intestines joint lacteals ligament limbs lower lungs machine manner means mecha mechanism membrane ment motion mouth mucilage muscles muscular nature necessary neck nerves object oblique observed organ oviparous pass passage pectoral fin perfect pipes plant proboscis produced properties provision purpose quadrupeds remarkable seed side ſº species spine stomach strong structure substance suppose surface teeth tendons thing tion tongue trunk tube tympanum ulna valves variety vein ventricle vertebrae vessels wanted watch whilst wings
Página 1 - I knew to the contrary, it had lain there for ever: nor would it perhaps be very easy to show the absurdity of this answer. But suppose I had found a watch upon the ground, and it should be inquired how the watch happened to be in that place ; I should hardly think of the answer which...
Página 21 - I mean that the contrivances of nature surpass the contrivances of art, in the complexity, subtilty, and curiosity of the mechanism ; and still more, if possible, do they go beyond them in number and variety ; yet, in a multitude of cases, are not less evidently mechanical, not less evidently contrivances, not less evidently accommodated to their end, or suited to their office, than are the most perfect productions of human ingenuity.
Página 22 - I know no better method of introducing so large a subject, than that of comparing a single thing with a single thing; an eye, for example, with a telescope.
Página 11 - ... some time, discover that, in addition to all the properties which he had hitherto observed in it, it possessed the unexpected property of producing, in the course of its movement, another watch like itself (the thing is conceivable) ; that it contained within it a mechanism, a system of parts, a mould for instance, or a complex adjustment of lathes, files, and other tools, evidently and separately calculated for this purpose; — let us inquire, what effect ought such a discovery to have upon...
Página 196 - And how well doth it execute its office ! An anatomist, who understood the structure of the heart, might say beforehand that it would play ; but he would expect, I think, from the complexity of its mechanism, and the delicacy of many of its parts, that it should always be liable to derangement, or that it would soon work itself out. Yet shall this wonderful machine go, night and day, for eighty years together, at the rate of a hundred thousand strokes every twenty-four hours, having, at every stroke,...
Página 363 - If the relation of sleep to night, and in some instances, its converse, be real, we cannot reflect without amazement upon the extent to which it carries us. Day and night are things close to us; the change applies immediately to our sensations: of all the phenomena of nature, it is the most obvious and the most familiar to our experience; but, in its cause, it belongs to the great motions which are passing in the heavens.
Página 374 - Not to take notice of her covering it from the injuries of the weather, providing it proper nourishment, and teaching it to help itself; nor to mention her forsaking the nest, if, after the usual time of reckoning, the young one does not make its appearance. A...
Página 165 - ... two little muscles that serve to lift up the eyelids, and so had almost lost the use of his sight, being forced, as long as this defect lasted, to shove up his eyelids every moment with his own hands...
Página 261 - ... whatever it was, is perfectly recovered, and the beard of the feather becomes as smooth and firm as if nothing had happened to it. Draw your finger down the feather, which is against the grain, and you break, probably, the junction of some of the contiguous threads ; draw your finger up the feather, and you restore all things to their former state.
Página 6 - ... manner it was performed : all this being no more than what is true of some exquisite remains of ancient art, of some lost arts, and, to the generality of mankind, of the more curious productions of modern manufacture. Does one man in a million know how oval frames are turned ? Ignorance of this kind exalts our opinion of the unseen and unknown artist's skill, if he be unseen and unknown, but raises no doubt in our minds of the existence and agency of such an artist, at some former time, and in...