. Key to North American birds [microform] : containing a concise account of every species of living and fossil bird at present known from the continent north of the Mexican and United States boundary, inclusive of Greenland. Birds; Ornithology; Oiseaux; Ornithologie. Structure of Feathers.â A prrfect fcftthor, jinssoRRinK all tho pftrts It can have dovtl- opcil, nmsixtw 111'II iniiiii stem, Hlmft or scaix' ( mipnii, a stalk ; tiir. 10, ml), and ii siip| iiiwntary Htciii or after-shaft (hi/porhachia; V,r. ino, hii)m, uiuh-r, paxit, rhnchis, a epinn or ridfc; fig. 19, h), t'acli Iwarii
. Key to North American birds [microform] : containing a concise account of every species of living and fossil bird at present known from the continent north of the Mexican and United States boundary, inclusive of Greenland. Birds; Ornithology; Oiseaux; Ornithologie. Structure of Feathers.â A prrfect fcftthor, jinssoRRinK all tho pftrts It can have dovtl- opcil, nmsixtw 111'II iniiiii stem, Hlmft or scaix' ( mipnii, a stalk ; tiir. 10, ml), and ii siip| iiiwntary Htciii or after-shaft (hi/porhachia; V,r. ino, hii)m, uiuh-r, paxit, rhnchis, a epinn or ridfc; fig. 19, h), t'acli IwariiiK two wtdis or vaiips (Lat. vexillum, pi. vexilla, a banner; fig. 19, r, c, <â ). on« on citlicr Hide. Tlie wlicde oeape is divided into two parts: one, nearest tho body of the bird, the tube or barrel or "<iuill" proj)er iLat. calamus, a reodj, which is a hard, horny, hollow, and 8enii-trans])arent cylinder, containing a little pith in the interior; it bears no weii«. One end of this i|niil tupers to be inserted into the skin ; the other |)asse8, at a point marked by a little i)it (Lat. umhiliais, tlie navel) into the shaft projier or rhnvhis, tho second part of tlin stem. The rhachis is a four-sided prism, H(iuarish in transverse section, and tajjors gradually to a fine pcunt; it is loss horny than the barrel, very elastic, opaque, and solidly pithy; it bears the vexilla. The after-shaft, when well doveloi)ed, is like a du)dieate in miniature of tho main feather, from tho stem of which it sinings, at junc- ti(m of ealamus with rha- ehis, close by the unibili(!us. It is generally very snnill compared with tho main part of the feather, though quite as large in a few kinds of birds; it is entirely want- *"'"⢠20. - Two imrim, ' , a, n,ofn vano, benrliiR lui- mg in some groups of birds; terlor, b, b, and poBterior, it is never developed on the after , . ' , . ., Nltzsch. large, strong wing- and tail- feathers. The fa»
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectbirds, bookyear1884
