Introduction, as to normal structure. I. Hyperemia. Haemorrhage, and (Edema, including Angioneuroses. II. Retrograde changes. 1. Atrophies of skin, hair, and Pigment; 2. pigmentations; 3. Necrosis, including ulcers. III. Inflammations. Causation. 1. Inflammatory skin eruptions, the individual lesions, and different forms; (a) Sudamina, (b) Erythema and Roseola, (c) Eczema, (d) Psoriasis, (e) Pityriasis rubra, (f) Lichen ruber, (g) Prurigo, (h) Pemphigus, (i) Acne. 2. Symptomatic Inflammations, in acute fevers, chiefly small-pox. 3. Inflammations from heat, cold, and injury, (a) Burns and scalds, in three degrees, (b) Frost-bite and chilblain, (r) Wounds and excoriations. 4. Infective inflammations. (a) Boil and carbuncle, (b) Cadaveric infection, (c) Phlegmonous inflammation, (d) Soft chancre, (e) Malignant oedema, (f) Anthrax, (g) Hospital gangrene. IV. Specific new-formations. 1. Syphilis, in primary, secondary, and tertiary forms; 2. Tuberculosis, as Lupus, Scrofuloderma, and Pathological Wart; 3. Leprosy, 4. Elephantiasis; 5. Framboesia. V. Trophoneuroses. Causation. 1. From nerve-leprosy; 2. From nerve-syphilis; 3. Herpes; 4. Glossy skin; 5. Scleroderma and Morphoea. VI. Hypertrophies and Tumours. 1. Ichthyosis, 2. Corn, 3. Wart, 4. Soft wart or mole, 5. Angioma, 6. Keloid, 7. Molluscuin contagiosum, 8. Fibroma molluscum, 9. Xanthoma, 10. Simple tumours, 11. Xeroderma pigmentosum, 12. Sarcoma, 13. Cancer. VII. Parasitic affections, chiefly from fungi. 1. Favus, 2. Ringworm, 3. Pityriasis versicolor, 4. Animal parasites.