2430. The sense of taste, its bones in the lingual bone, its muscles in and upon the tongue.
2431. The sense of smell, its bones in the nasal bones, its muscles being frequently very much developed in the snout or proboscis.
2432. The sense of hearing, its bones in the auditory ossicles, its muscles in the auditory conch.
2433. The sense of sight, its bones in a ring surrounding the sclerotic coat and in the eyelids, its muscles in the ocular muscles.
2434. Besides the proper sensorial nerves, each organ of sense is provided with nerves for the motor system and for the vegetative systems, especially those of secretion.
2435. The integument has, besides the nerves of the tactile papillæ, vascular and motor nerves.
2436. The tongue is supplied with nerves of motion and digestion, and has therefore three pairs of nerves.
2437. The nose receives motor and respiratory nerves from the fifth pair.
2438. The ear has likewise three kinds of nerves; the auditory nerves, facial nerves, and a branch from the fifth pair, not to mention those that are distributed to the auditory conch.
2439. The eye has, in addition to its wholly special motor nerves, a number of others, which superintend its vegetative systems, such as the iris and the secretions of the humours.