BIOLOGICAL AND MICROSCOPICAL DEPARTMENT. II 



Dr. Tyson inquired of Dr. Hunt whether the effervescence with 

 acid did not indicate that the dust was composed of earbonaU's, tn 

 which question Dr. Hunt replied in the affirmative. 



November 21st, 1870. 



(Conversational Meeting.) 



Director S. W. Mitchell, M. D., in the Chair. 



Twelve members present. 



Dr. Mitchell read an interesting account of a case of supposed 

 Guinea worm iu a patient from South Carolina, showing the worm 

 itself, presumed to be allied to the Dracunculus, which lie intended 

 to present at the approaching business meeting, and make applica- 

 tion for permission to publish the paper in the next number of the 

 American Journal of the Medical Seienct -. 



In the course of the conversational discussion to which this gave rise, Du. 

 Mitchell stated that a similar case had occurred at the Wills' Hospital some 

 years since. 



Dr. Ooates remarked that not very long ago a horse was on exhibition, 

 and had been seen by many medical gentlemen, in which a worm was dis- 

 tinctly visible within the aqueous humor. He further inquired whether it 

 was known what mode of travelling through the tissues was adopted by the 

 ova in these cases. 



Dr. Holt thought there was little doubt that they made their first entrance 

 into the system in the water used for drinking. 



Dr. Tyson considered that their mode of progress among the structures of 

 the body might be Somewhat analogous to the remarkable amoeboid move- 

 ments of the white blood corpuscles. 



Dr. Mitchell mentioned in this connection a case where a piece of blunt- 

 pointed iron wire was removed at the instep of a patient whose leg it had en- 

 tered above the knee some time, before. 



Dr. Coates finally wished to know how the ovum of this parasite could 

 have made its way through the patient's flesh, been swallowed iu the water 

 which she drank, or even existed at all in her neighborhood, when no other 

 specimen of it-s kind had ever been known to occur in the State of South Ca- 

 rolina. 



December 5th, 1870. 

 (Annual Meeting.) 

 Director S. W. Mitchell, M. D., in the Chair. 

 Fourteen members present. 



Dr. Mitchell requested that the paper of Dr. Priolieu, read at the 

 last conversational meeting, should be referred to a committee for 

 publication, if approved. On motion of Dr. Kenderdine, it was 

 voted that Dr. Leidy be appointed a Committee of one, to whom the 

 specimen and communication be referred. 



Reports of the Recorder, the Corresponding Secretary and the 

 Treasurer, each giving abstracts of the affaire and transactions oi 



