Typescript letter written on Columbia University College of Physicians and Surgeons letterhead and signed by Ernest L. Scott. Includes an autograph post script written in ink that reads: 'Please give my regards to Professor Macleod.' In this letter, Scott, discusses his position in regards to priority in insulin work. He mentions the exchange of letters between Drs. Roberts and Dale in the British Medical Journal and his own letter to the Journal of the American Medical Association.