(From Our Regular Correspondent)Dec. 28, 1935.
The Annual Congress of Radiology
The ninth annual congress arranged by the British Institute of Radiology was held in London. Dr. G. W. C. Kaye, physicist, of the National Physical Laboratory, discussed modern equipment. He commended the work of Allibone and his collaborators, who had constructed automatically evacuated x-ray tubes and valves which were self protected, shock proof and operated by press buttons. The exciting voltages, at present of the order of from 200 to 300 kilovolts, were being pushed up much higher. Voltages up to 600 kilovolts or more were to be used in St. Bartholomew's Hospital.
In radiation therapy, certain principles were emerging. In the treatment of cancer, x-rays, radium or a combination of these were used according to circumstances. In certain superficial cancers, such as rodent ulcer, almost any radiation would heal, whether low voltage x-rays or