. Elements of the comparative anatomy of vertebrates. Anatomy, Comparative; Vertebrates -- Anatomy. 194 COMPARATIVE ANATOMY. A we. 11 differentiated Harderian gland is present in the whole scrit-s uf animals i'roin the tailless Amphibia to the Mammalia. Amongst the latter it is wanting in the Cetacea and Primates only. 7-ft. FIG. 1 ."•'.'. — DIAHKAM OF THE LACIIYMAL APPARATUS OF MAN. TJ), lacryjual gland, divided up into several portions ; **, ducts of the lacrymul gland; tt, puncta lacrymalia ; TJ!, 2'A'1, upper and lower lacrymal canals; >', larryinal sac ; D, naso-lacrymal duct. T11
. Elements of the comparative anatomy of vertebrates. Anatomy, Comparative; Vertebrates -- Anatomy. 194 COMPARATIVE ANATOMY. A we. 11 differentiated Harderian gland is present in the whole scrit-s uf animals i'roin the tailless Amphibia to the Mammalia. Amongst the latter it is wanting in the Cetacea and Primates only. 7-ft. FIG. 1 ."•'.'. — DIAHKAM OF THE LACIIYMAL APPARATUS OF MAN. TJ), lacryjual gland, divided up into several portions ; **, ducts of the lacrymul gland; tt, puncta lacrymalia ; TJ!, 2'A'1, upper and lower lacrymal canals; >', larryinal sac ; D, naso-lacrymal duct. T11e ^I e i b o m i a n glands, belonging to the group of sebaceous glands, are confined to the Mammalia, and lie embedded in the substance of the eyelids in the form of branched tree-like tubes or clustered masses. They open on the free edge of the lid, and produce a, fatty secretion. BIBLIOGRAPHY. :, I"..—I'x'itrii'jezwr Anatomie des Schonjanes der Fischc. Morphol. Jahrb. Bd. VIII. 1882. BOLL, F.—Zitr Anatomic und Physiologic Retina. Arch. f. Anal. u. Physiol. -. Physiol. CARRIEKE, J.—l>i ^>/i"i;iane der Thierc. Miinoheu und Leipzig, 1885. II i IMM \xx, C.—Beitrage zur Anatomie der Retina, Arch. f. mikr. Anat. Bd. XIV. 1877. Kr>-i,!.n, L.—Zur Entwicklung des Auges. Leijizig, 1877. i i , It.—Organologie des Auges. In A. Gra>'fe und Th. Saemisch, Handbuch dcr </i'xrt/i»nten AugenJttilkundc. Bd. I. Anatomic und Physiologic. MAN/.. W.— des menschl. AIKJCS. Ibid. .Mi :1:, "R.—Gesammelte und hinterlassene Schriftcn zur Anatomic und Physiologic des Auges. Herausgegeb. von 0. Becker. Leipzig, 1872. MILLER, W.— Ucb. die Stammescntwick. des Schoryanes dcr JJ'irbcUhicrc. Festgabc von ZooL Am. 1884. Siiii'LZE, M.—Die H'liiiti. Sti-ifi,--v'.v J[,inillnii'li ,!,--,• L'-Jirc von drn Cffurbni. Li-ip/ig, 1871. S •(• nisi .lir/iir far Jit'i/minr, Bd. II., 111., IV., V., VI., &
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