278 Account of a Filaria in a Horse's Eye. 



Art. V. — An account of a Filarici in a Horse's Eye, with re- 

 marks on similar phenomena, and the mode of their origin ; 

 by Charles A. Lee, M. D., of New York. 



Read before the Lyceum of Natural History of New York. 



The existence of parasitic worms in the interior of animals 

 has been known from a very remote period. They are mention- 

 ed by Hippocrates, Galen, Celsus, Pliny and other writers; and 

 various speculations have been advanced in respect to their ori- 

 gin. It is only however within modern times that they have re- 

 ceived much attention from physicians and naturalists, except as 

 to their agency in the production of disease. Many different gen- 

 era and species have now been described by Linn^us, Rudolphi, 

 Bremser, De Blainville, Cruvelhier and others, and arranged ac- 

 cording to their several characters. Indeed so numerous have 



