. The structure and classification of birds . Fig. 34.—Cabotids of as in Fig. Fig. 35.—Cabotids op as in Fig. 32. Many writers, especially Nitzsch, among the earher anato-mists, have drawn attention to some of these variations. L. A. Neugebaueb, Systema Venosum- Avium, Nov. Act. Acad. Nat. 1845, p. 517; Bathke, Ober die Carotiden . . der Vogel, Arch. f. Anat. 1850, p. 184, and Bemerk. iiber die Entstehung, &o., der , ibid. 1858, p. 315 ; Gabbod, On the Carotid Arteries of Birds, P. Z. , p. 457 ; C. H. Wade, Note
. The structure and classification of birds . Fig. 34.—Cabotids of as in Fig. Fig. 35.—Cabotids op as in Fig. 32. Many writers, especially Nitzsch, among the earher anato-mists, have drawn attention to some of these variations. L. A. Neugebaueb, Systema Venosum- Avium, Nov. Act. Acad. Nat. 1845, p. 517; Bathke, Ober die Carotiden . . der Vogel, Arch. f. Anat. 1850, p. 184, and Bemerk. iiber die Entstehung, &o., der , ibid. 1858, p. 315 ; Gabbod, On the Carotid Arteries of Birds, P. Z. , p. 457 ; C. H. Wade, Notes on the Venous System of Birds, /. LinnSoc. xii. 1876, p. 531; F. Hochbtettee, Beitrage zur Entwioklungsgeschiohtedes Venensystems, &c., Morph. xiii. 1888, p. 575, and tJber denUrsprung der Subclavia d. Vogel, ibid. xvi. 1890, p. 484. CIRCULATORY SYSTEM 53 But the whole matter was described at considerable lengthby Gabrod, who had more abundant material to work upon,but who, nevertheless, left for his successor Forbes one outof the eight known types to describe. The most prevale
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