360 ON A SPECIES OF CESTBLS. 



in making the poultice. On the fourth morning after 

 this remedy, I felt considerable relief, and on the fifth, 

 with a forceps, I drew out the worm which you hav« 

 now in your possession, and which was then dead. 

 u In a few days the sore assumed a healthy look, 

 and in ten days was perfectly healed up — although, 

 at times, I yet experience a heavy pain in the part 

 from whence the worm has been taken. It had tra- 

 velled on the periosteum along the tibia for at least 

 two inches. The severe pain which I experienced 

 for those periods, I attribute to the irritation of some 

 of the branches of the nerves distributed to the parts 

 by the worm in its progress. Respecting this worm 

 there are different opinions among the Spaniards 

 and Creoles. Ouche is the name it is called by some, 

 who say it is produced by a worm which crawls on 

 the body, from the ground, and penetrating the skin, 

 increases in size. Others maintain that they are pro- 

 duced from the sting of a winged insect which they 

 call Zancudo,* others again call the insect Husano ; 

 for my part I am rather inclined to think that they 

 are produced from the sting of a winged insect which 

 deposits its egg. 



" N. B, Should it even be proven that the form ot 

 the anterior part of this larva is owing to the vio- 

 lence used in extracting it, of which there is no ap- 

 pearance, still it will stand as distinct from other 

 known species." 



* The word Zancudo is used by the South American Spa- 

 njards to denote several species of Culex. S. 



