304 Sir James Mackenzie Dapidson [Feb. 2, 



other cases of rodent ulcer, and with equally striking and satisfactory 

 results. While incapable of effecting a cure in certain severe and 

 old-standing cases, their progress was often arrested in a marked 

 manner, and considerable improvement of the condition was attained. 

 Spring Gaf arr h. —Uadinm has also proved to have a markedly 

 specific action upon a troublesome disease of the eyelids known as 

 "spring catarrh." This occurs in young people, the upper eyelids 

 more particularly being covered with rough tesselated granulations. 

 The disease was quite incurable until I applied radium to a little boy 

 sent to me by Mr. Arnold Lawson in February 1006, and with the 

 use of radium every case treated during the six years has been com- 

 pletely and painlessly cured. A matter also worthy of remark is that 

 from the commencement of the treatment, even before any appreci- 

 able improvement is visible, the patients express themselves as feeling 

 the eyes much more comfortable, and they are able to use them in 

 their ordinary occupations during the period of treatment. 



[" Spring catarrh " case of Dr. Dawson Turner, of 

 Edinburgh. Right eye treated by this method, other 

 eye not. Notice difference. Case got well.] 



In external diseases of the eye, radium has also proved to be of 

 the greatest use.* 



Cure of Chronic X-rays Dermatitis. — A further indication for 

 radium -therapy was discovered in the case of ^--ray dermatitis. It 

 was my misfortune to suffer from a chronic manifestation of this 

 trouble, and three or four years ago a burnt patch on my head became 

 ulcerated. One portion was so threatening as to suggest malignancy, 

 which is, unfortunately, a common result of these lesions. As nothing 

 that was tried would effect a cure, it became a question of excision, 

 but before resorting to this I applied radium in glass tubes, and was 

 agreeably surprised to find that it completely cured the condition, 



The tube contained 20 milligrams of pure radium bromide, and 

 was left in position for 2.5 minutes. Nothing happened for twelve 

 days, and then there occurred a certain amount of swelling and redness, 

 the size of the black crust increased, and serum exuded from the side. 

 This gradually subsided, and when the crust peeled off the normal 

 healthy thin skin was found to be beneath it. 



Slide 1. Left hand with spot of 2;-ray dermatitis. 



2. Same hand, with radium tube in position for 



treatment. 

 B. Hand showing reaction. 



4. Hand cured, spot having disappeared. 



5. Very severe case of x-raj dermatitis. 



6. 7 and 8. Dr. Hall Edwards's hands.] 



Vide Lawson and Mackenzie Davidson paper. 



