1 
JOURNAL OF PROCEEDINGS. 
of the human stomach, possessed by some of the lower inverte- 
brated animals, noticed the existence of certain gasteropodous 
animals in the thermal springs of Italy. And also stated an in- 
stance in which a Filaria, which had taken up its abode in the 
head of a cod-fish, had survived the boiling of the latter, and had 
been seen crawling about the dish in which it was placed. On 
the other hand, he mentioned that Filaria; in dead herrings, which 
had been frozen for a considerable period, had also retained their 
vitality. 
Mr. Shuckard, on the authority of Mr. Standish, mentioned a 
circumstance, of which he had been informed, of a living moth 
having made its escape out of a potatoe which had been boiled ; 
but this fact was not worthy of credit. 
Mr. Bracy Clark considered the accounts hitherto published of 
the occurrence of CEstri in the human body, as doubtful. Of 
these he stated that the chief were those of Pallas, and a case re- 
corded in the twenty-third volume of the Surgical Transactions. 
He entered into a detail of the habits of the three sections of the 
CEstridce, and contended that the cases of (Estrus , hitherto re- 
corded, attacking man, must have been produced by CE. bovis, 
and not by species of the divisions in which the larvae resided in 
the stomachs or the frontal sinuses of animals. He also remarked 
upon the improbability of there being a species of Estrus con- 
fined to man, who was ordinarily clothed, thereby preventing the 
attacks of the insect. 
Mr. Hope contended that, although the cases of CEstrideous 
attacks upon man might be confined to the species belonging to 
the group of which CE. bovis was the type, it was not likely that 
the cases which had occurred in South America and the West 
Indies were produced by that species, which was an inhabitant of 
our own country. 
May 1 st, 1837. 
J. F. Stephens, Esq., President, in the Chair. 
Donations. 
Philosophical Transactions of the Royal Society for 1836. 
Parts 1 and 2. 
