1. Cairns, H. (1931). Proc. R. Soc. Med., 25, 31, 34, 35.
2. This report includes cases up to October,1949
3. The operation of choice in the earlier years was a partial (intracapsular) removal, but largely as a result of the experience of Horrax, I decided to attempt primary total extirpation more frequently,1942