296 
PROCEEDINGS OF THE SOCIETY. 
tions as it bad been possible to make, would be published in extenso 
in the Journal. 
On the motion of the President, tbe thanks of the Society were 
given to Dr. Benham for his communication. 
Prof. Bell said they had also received a paper from Mr. T. B. 
Eosseter “ On the Cysticercus of Tsenia coronula found in specimens of 
Cypris.” Mr. Eosseter had from time to time written to him with 
regard to his observations, but so far they had not been complete, and 
he had suggested to him the direction which it was advisable for him to 
take in order to render them so. Mr. Eosseter for some time failed to 
make the observations suggested to him, but he had repeatedly visited 
the field in which was situated the pond which contained the Cypris , 
in the hope of discovering the object of his search amongst the faeces of 
the animals by which the place was frequented. On one fortunate 
occasion, however, he found amongst the evacuations of a duck a small 
whitish ball which turned out to be a mass of seventy or eighty tape- 
worms. By reference to the work of Dujardin, where eight forms were 
described, he was able to find that one very closely resembled those he 
had found, and he came to the conclusion that the cysticercus of the 
Cypris was that of Tsenia coronula. Unfortunately for Mr. Eosseter, it 
happened that his observations had been anticipated by those of a 
Hungarian gentleman, Herr Al. Mrazek, a notice of which appears in 
the just issued number of the Society’s Journal (pp. 45-6), and though 
this might be a matter for regret, he had at least the satisfaction of 
knowing that his opinion was confirmed. There seemed to be every 
probability that Mr. Eosseter was right in determining the species to be 
coronula , and they might reasonably suppose that, living in the same 
pond, the duck might eat the Cypris , and in this way the transference 
from one host to the other would be effected. 
The President said that although it appeared that Mr. Eosseter had 
been anticipated, he thought they might compliment him upon the 
perseverance he had shown in following up the matter, and that the 
thanks of the Society were due to him for his communication. 
Mr. Mayall said they had received a preliminary notice of an Inter- 
national Exhibition to be opened this year at Antwerp in connection 
with the 300th anniversary of the invention of the Microscope. It was 
intended to exhibit Microscopes of all kinds, from the earliest to the 
most modern, and to include apparatus of all kinds relating to micro- 
scopy. Invitations would, doubtless, be given to the possessors of 
interesting Microscopes, &c.,to contribute to the success of the exhibition 
by the loan of them (see ante, p. 271). 
Tbe President said they would probably receive some further com- 
munication on the matter later on, and it would no doubt make a 
pleasant trip for any one who could go over to see wbat was exhibited at 
Antwerp. 
