Tongue of Human and Rabbit
A, Section through papilla vallata of a human tongue. B, Section through part of the papilla foliata of a rabbit. Labels: 1, papilla; 2, vallum; 3, taste buds; 4, papillae; 5, taste buds; 6, ducts of serous gland.
Cunningham, D.J. Textbook of Anatomy (New York, NY: William Wood and Co., 1903)