opinion respecting this remarkable affection, I may be allowed to deviate from the strictly scientific delineation of the cases, and allude to any circumstances affecting the history of its discovery, and bearing on the probabilities of its being a truly scientific deduction or not. Thus, in the present case, I may be allowed to state, in answer to those who have hinted at the diagnosis being nothing more than a guess, that, being away from the hospital during the time this case was in the institution, I was urgently written to by Dr. Addison to have a drawing or model made of the patient ; also, that I myself wrote to Mr. Hutchinson, who was collecting cases for the ‘Medical Times and Gazette,’ informing him that he had an opportunity of seeing a model case of morbus Addisonii. Unfortunately, neither Dr. Addison’s nor my own wishes were accomplished, as the lad soon died ; but so certain was the feeling of the correctness of the diagnosis, that a special appointment was made with Mr. Towne at an early hour of the morning, in order to model the organs when removed. It was thus seen that the diagnosis was as positive and as much believed and persisted in as any opinion which was formed as to the nature of a disease can possibly be. I make these remarks in reference to Addison’s last case, in order to show that he had no doubt as to the correctness of his first conclusions.