. Human physiology : designed for colleges and the higher classes in schools, and for general reading. eserved exactly amid all his wanderings the pointsof the compass. The surface over which he went was very irregulnr. He had to crosior wind around eminences, which were to him as large as hills and mountains are to man,and yet he was not embarrassed; and when he went among the stones he hud more andgreater difficulties to encounter than man meets with in passing through the wildest coun-tries. Again, suppose that the travelling man should meet with some whirlwind or someconvulsion of nature,
. Human physiology : designed for colleges and the higher classes in schools, and for general reading. eserved exactly amid all his wanderings the pointsof the compass. The surface over which he went was very irregulnr. He had to crosior wind around eminences, which were to him as large as hills and mountains are to man,and yet he was not embarrassed; and when he went among the stones he hud more andgreater difficulties to encounter than man meets with in passing through the wildest coun-tries. Again, suppose that the travelling man should meet with some whirlwind or someconvulsion of nature, which should separate him from his burden, and disarrange in somameasure the face of the country about him, just as the travelling insect was served by thecommotion of the horses feet and the wheels of the waggon. Would he find his load aseasily as the insect did, and go on his way with as little hesitation) 30 850 HUMAN PHYSIOLOGY. Contrivances in the nests of birds. which are constructed by the bees of the present day. Andeach bird builds its nest precisely in the same way that its an- FIG. NEST OF THE BAYA. cestral birds have ever done. Most birdsnests are constructed after the same generalpattern. But sometimes we observe strik-ing peculiarities to subserve some specialpurpose. Fig. 187 represents the nest ofthe Baya, a little bird of Hindoostan. Itis in the shape of a bottle, and is made oflong grass. It is suspended from a slen-der branch of a tree, so that monkeys,serpents, <fec, cannot reach it. The en-trance to the nest is made on the underside, so that these animals cannot enter,while the bird itself can readily fly in. Itis divided into apartments, in one of whichthe female sits upon the eggs, while in theother the male bird solaces his companionwith his song whilst she is occupied in ma-ternal cares. In Fig. 188 is seen the nestof another little eastern bird, which withfilaments of cotton taken from the cottonplant, sews leaves together with its beakand fee
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