164 
PROCEEDINGS OF THE SOCIETY. 
Mr. Charles Stewart : Sporogonia of Funaria hygrometrica^ and 
some new Polyzoa. 
Mr. Amos Topping : Various patterns of grouped Polycystina, and 
some injected preparations mounted in balsam, but preserving the 
true form as in fluid mounting. 
Mr. F. H. Ward : New form of micro-spectroscope ; spectrum of 
didymium, didymium glass, &c. ; and sections of the stem of Eu- 
calyptus stained with carmine, logwood, &c. 
Mr. Eobert G. West : Lissajou’s curves on glass slides for the 
microscope. 
King’s College, London, June 5 , 1878. 
H. J. Slack, Esq., President, in the chair. 
The minutes of the preceding meeting were read, and were signed 
by the President. 
A list of the donations received since the last meeting was read 
by the Secretary, and the thanks of the Society were voted to the 
respective donors. 
The President said that under the old practice of the Society its 
meetings took place on the second Wednesday in the month ; but when 
the ‘ Monthly Microscopical Journal ’ was commenced, it was repre- 
sented to them by the Publisher that this did not give sufficient time 
to allow of the ‘ Proceedings ’ appearing in the next monthly issue. On 
this account their night of meeting was altered to the first Wednesday 
in the month, which had been found to clash with the meetings of the 
Geological Society and some others, to the great inconvenience of 
many of the Fellows. Under the new arrangements for the Journal 
there would be no difficulty in regard to the publication of the ‘ Pro- 
ceedings ’ if their meetings were held later in the month ; and it had 
therefore been suggested that they should revert to the original plan 
of meeting on the second instead of on the first Wednesday in the 
month. Their next meeting would not take place until October, 
before which time a new list of meetings would be issued, and in which 
the alteration would apjiear. It was not quite formal to bring the 
question before an ordinary meeting, but the Council — with whom it 
rested to make the change — thought it better to mention it this 
evening, so that if any Fellow had any objection he might be able to 
state it. All that the Council wished was to accommodate the greatest 
number as much as possible. 
There being no objection raised, the President formally announced 
that in future the meetings of the Society would be held on the 
second Wednesday in each month during the session. 
The President said the meeting would be pleased to hear that 
they were favoured with the presence that evening of Professor Stokes, 
Sec. E.S., who had come up from Cambridge to read a paper he had 
prepared on the angular aperture of object-glasses, and which it was 
considered would entirely dispose of the points formerly in contro- 
versy on this question. Before he read it, the Secretary would read 
a note by Professor Keith, bearing on the same subject. 
Mr. Ih’ank Crisp (Secretary) then read the note by Professor Keith, 
