Professor B. Windeyer and Sir Stanford Cade who arrived from England to-day at Mascot. They are cancer specialists who will give lectures throughout Australia on the subject. A panel of experts under an Australian, Professor B. W. Windeyer (pictured), is to be set up to study radiation dangers to persons working in research establishments. Parliamentary Secretary to the Ministry of Labour, Mr. Richard Wood, said the panel would consider the safety and health questions arising from the use of ion