I. Sections of Teeth of Megatherium, illustrating the relative dispositions of the Ivory, Enamel, and Crusta petrosa, or Cœmentum. (Original. Clift.)

2. Posterior surface of a caudal vertebra of Megatherium, exhibiting enormous transverse processes. On its lower margin are seen the articulating surfaces which received the chevron bone; the superior spinous process is broken off. V. I. p. 151. (Sir F. Chantrey. Original.)