. Reptiles and birds. A popular account of the various orders; with a description of the habits and economy of the most interesting. Birds; Reptiles. Kg. 48. the feathers; when long, they are stretched out beneath or behind the tail, which is more or less expanded, and helps to support the body in the air, as well as, by acting in the manner of a Eig. 49. rudder, to change its direction, or, by being expanded, to break its ; The wings of birds are acute or obtuse. The more angular the. Fig. 60. wing of birds—that is to say, the longer the feathers on the edge of the wing—the more
. Reptiles and birds. A popular account of the various orders; with a description of the habits and economy of the most interesting. Birds; Reptiles. Kg. 48. the feathers; when long, they are stretched out beneath or behind the tail, which is more or less expanded, and helps to support the body in the air, as well as, by acting in the manner of a Eig. 49. rudder, to change its direction, or, by being expanded, to break its ; The wings of birds are acute or obtuse. The more angular the. Fig. 60. wing of birds—that is to say, the longer the feathers on the edge of the wing—the more rapidly does it propel itseK through the air. The tail consists of a number of feathers, to which are attached a series of small muscles, one for each vertebra, which are capable of depressing and elevating the tail in various degrees; while a series of connections, whose fibres invest the base of the. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Figuier, Louis, 1819-1894; Gillmore, Parker, ed. Springfield, Mass. , W. J. Holland
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Keywords: ., bookcentury1800, bookdecad, booksubjectbirds, booksubjectreptiles
