354 
PROCEEDINGS OF THE SOCIETY. 
This proposition was carried by the Meeting with acclamation. 
It was announced that at the next Meeting it was hoped Dr. H. C. 
Sorby would read a paper on the Preparation of Microscopical Speci- 
mens of Marine Worms. 
The following Instruments, Objects, &c., were exhibited: — 
The Society : — Two old Microscopes. 
Dr. Hebb, for Miss Y. A. Latham, M.D. F.R.M.S. : — Two Slides, 
showing the difference between the reaction of Normal and Diabetic 
Blood to Methylen-blue. 
New Fellows : — The following were elected Ordinary Fellows : — 
Messrs, Peyton T. B. Beale, J. Bliss, Mrs. Mary A. D. Jones, and 
Mr. Walter Jas. Wood. 
MEETING 
Held on the 17th of May, 1899, at 20 Hanover Square, W., 
The President (E. M. Nelson, Esq.) in the Chair. 
The Minutes of the Meeting of 19th April last were read and con- 
firmed, and were signed by the President. 
The List of Donations to the Society, exclusive of exchanges and 
reprints, received since the last Meeting, was submitted. 
From 
Trinchese, S., iEolididm e Famiglie Affini del porto di Genova. 
(4to, part 1, Bologna, 1877-78-79; part 2, Koine, 1881) .. Mr. F. W. Mills. 
Photographs, by Mr. Jas. Wedeles, of Rulings on Glass by Mr. 
H. J. Grayson, and of Slides of Diatoms Mr. Jas . Wedeles. 
Dr. Hebb called special attention to the two very beautiful volumes 
presented to the Society by Mr. F. W. Mills, which would be a very 
useful and valuable addition to the library. 
The thanks of the Society were voted to the donors ; a special vote 
of thanks being, on the motion of the President, accorded to Mr. Mills. 
Mr. C. L. Curties exhibited and described a new electrically heated 
stage recently brought out by Reichert of Vienna, constructed so as to 
be heated by the current from the ordinary electric-lighting supply, to 
which it could be readily attached by a flexible cord. A thermometer 
on the stage enabled the operator to see the temperature attained, which 
by an ingenious arrangement could be regulated to any required degree. 
This was accomplished by means of a small separate battery and contact 
breaker, which came into action as soon* as the prescribed limit was 
exceeded, and, by interrupting the main circuit, cut off the current from 
the stage until it had cooled down to the temperature for which the 
thermometric regulator had been set. It was claimed that this automatic 
