272 
PROCEEDINGS OF THE SOCIETY. 
Mr. Crisp pointed out that the cylindrical chamber round the eye- 
piece was a very awkward arrangement for the observer, not at all 
calculated to facilitate observations. 
Prof. Bell announced that the Council had nominated for election as 
an Honorary Fellow of the Society, Prof. F. Leydig, of Bonn, whose 
name would be submitted for election at the ensuing meeting. 
Prof. Bell also stated that, in connection with a movement which had 
been set on foot for the purpose of presenting a memorial to Prof. 
Pasteur, one of the Honorary Fellows of the Society, a letter had been 
received from Mrs. Priestley, inclosed with which was a page of the 
memorial upon which the signatures of Fellows of the Society were to 
be placed. The Council had signed it as requested, and there was about 
half the page left for the signatures of any other Fellows who might like 
to record their names also, whilst it was intimated that another page 
might be procured if found necessary. 
Mr. Rousselet said that he exhibited a number of Rotifers, chiefly for 
the purpose of showing their abundance at the present season of the 
year. 
Prof. Bell read a letter received from Colonel O’Hara with reference 
to a specimen exhibited in the room, which was supposed to be some 
kind of Entozoon passed in urine. 
Prof. Stewart said he had looked at this object ; it was not very 
transparent, and therefore not easy to determine, but it looked like a 
Trematode worm of some sort. These things were well known as 
occurring in the bladders of frogs and Amphibia, but so far as known 
to him they had not been found before in human urine. 
Prof. Bell said the letter did not state that the object was found in 
human urine. 
Prof. Bennett thought that to be heard well in that room it would 
be necessary for speakers to raise their voices to a higher tone than was 
usually adopted. There seemed to be a good deal of resonance some- 
where, and much of what had been said had been very imperfectly 
audible from where he was sitting. 
Prof. Stewart thought that the tone of the speaker was not of so 
much consequence as the clearness and slowness with which he spoke, 
as the difficulty was due rather to the nature of the room. Probably if 
some kind of curtain or banner were hung up so as to prevent the reflec- 
tion of sound from so many surfaces it would greatly modify the defect 
which had been noticed. 
Prof. Bell said it would be remembered that at their meeting in 
January last a paper was to have been read by Mr. Michael “ On the 
Variations of the Female Reproductive Organs, especially the Vestibule, 
in different species of Uropoda,” but that, owing to a want of time on 
that occasion, the subject was postponed until March. Since then he 
regretted to say that Mr. Michael had been seriously ill, and was con- 
