22 ROARING IN HORSES. 



unfavourable, Moller decided on completely 

 excising the arytenoid cartilage (fig. 2), by 

 which operation he had In 1887-8 cured 



Fig. 2. — Holler's operation. Vertical and antero-posterior section of 

 the larynx. — The dotted line represents the mucous membrane 

 covering the edges of the arytenoid cartilage. 



twenty-two cases out of thirty ; that Is to say, 

 a proportion of 75 per cent, of successes. 



The first of Fleming's experiments dates 

 from 1878. " The possibility of curing a 



