Fig. 4. Tubular structure of hair and wool.

Fig. 5. Relative positions of the layers of the skin, mode in which the hairs rise from, and situation of, the sebaceous follicles; a. the cuticle; b. the mucous layer; c. the true skin; d. sebaceous follicles; e. hairs rising from the true skin; f. the yolk.

[PLATE VI.]

Fig. 1. Section of the lung of a sheep which has been over-driven.

Fig. 2. Section of the lung of a sheep which has been affected with Rot.

[PLATE VII.]

Fig. 1. The Cysticercus tenuicollis.

Fig. 1. a. Head of the same magnified.

Fig. 2. The Cœnurus Cerebralis.

Fig. 2. a. Heads of the Cœnurus magnified.