. A manual of zoology for the use of students : with a general introduction on the principles of zoology . Zoology. UNGULATA. 563 usually more or less branched (fig. 219), and they are annually shed and annually reproduced at the breeding season. They increase in size and in the number of branches every time they are reproduced, until in the old males they may attain an en- ormous size. The first time they are produced, the horns are in the form of simple cylindrical shafts; the second year's hoins have one or two " tynes," and so on. The antlers are carried upon the frontal bone, an
. A manual of zoology for the use of students : with a general introduction on the principles of zoology . Zoology. UNGULATA. 563 usually more or less branched (fig. 219), and they are annually shed and annually reproduced at the breeding season. They increase in size and in the number of branches every time they are reproduced, until in the old males they may attain an en- ormous size. The first time they are produced, the horns are in the form of simple cylindrical shafts; the second year's hoins have one or two " tynes," and so on. The antlers are carried upon the frontal bone, and are produced by a process not at all unhke that by which injuries of osseous structures are made good in man. At first the antlers are covered with a. Fig. 2ISi.—Head of the Red-deer {Cervus elaphus), sensitive hairy skin ; but as development proceeds, the vessels of the skin are gradually obliterated, and the skin dies and peels off. In all the Deer there is a sebaceous gland, called the " lachrymal sinus," or " larmier," which is placed beneath each eye, and secretes a strongly-smelling waxy substance. The CervidiB are very generally distributed, but no member of the group has hitherto been discovered in either Australia or South Africa, their place in the latter continent seeming to be taken by the nearly-allied Antelopes (distinguished by their hollow horns).. 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 Nicholson, Henry Alleyne, 1844-1899. New York : D. Appleton
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