VII. Account of a non-descript Worm (the Ascaris pellucidus) 

 found in the Eyes of Horses in India. In Letters from 

 Alexander Kenned x^, M. D. F. R. S. Edin. to Profes- 

 sor Russell and Dr Hope. With a Description of the 

 Animal, by Captain Thomas Brown, F. R. S. E. & 

 F. L. S. 



(Read Feb. 5. 1816, and Nov. 9. 1818.^ 



Dear Sir, Edinburgh, 5th February 1816. 



W HEN I lately mentioned to you in conversation, the dis- 

 ease in the eyes of horses in India, occasioned by the presence 

 of a worm within the ball of the eye, I thought that you 

 might probably have heard of it before ; but as you had not, 

 and are desirous of further information upon the subject, I now 

 take this method of mentioning the circumstances to you, so 

 far as I know them. 



The animal occasioning this disease, is termed by the na- 

 tives about Madras, the " Worm" in the Horse's Eye, by using 

 the corresponding words in their respective languages. I have 

 been told that in Bengal it is called the " Sanp" or the Snake 

 in the Horse's Eye. As it seems more to resemble a fish or 

 an aquatic insect, it might perhaps with more propriety be re- 

 garded as an eel. 



o 2 This 



