The experiment herein described was undertaken at the Central Research Institute, Kasauli, India. It commenced on September 6, 1913, and terminated, owing to my recall to military duty for active service, on December 24, 1914. Having been on service for the past 18 months I have not hitherto had an opportunity to report it.
Object of the Experiment
. Its object was to determine the cause of congenital goitre and the conditions under which it developed in large animals, and to confirm and amplify the results I had obtained by previous experimentation on white rats.