The principal points in connection with my Thesis are: 1. That Ulcers of the Cornea are an extremely common occurrence. 2. Ulcer of the Cornea must not be locked upon as a Simple Condition. 3. On account of the complications which can he set up, there is always the danger of impaired vision and even of complete loss of sight. 4. Treatment must be adopted at once. 5. As soon as possible put your patients to bed and keep them there. 6. Kerotomy is one of the simplest and at the same time one of the most efficacious remedies we have. 7. If doubtful cf the case, take Cultures at once. 8. In the case of Opacities, if not of too long standing and if other remedies fail try Pericausis. 9. Don't expect to get rapid cures. Treatment lasts sometimes for many months: therefore persevere.