Dissection of the mouth, shown in situ, in 4 numbered illustrations. 2 illustrations of mouth shown intact, superior and inferior surface of the tongue, full permanent dentition shown. 1 illustration of the oropharynx divided in sagital section to show tongue, gingeva, salivary glands. Medial view. 1 illustration of dissection of the oropharynx divided in coronal section to show intact tongue, tonsils, epiglottis, anterior view.