246 
PROCEEDINGS OF THE SOCIETY. 
New Fellow: — The following was elected an Ordinary Fellow of 
the Society: — Mr. Julius Rheinberg. 
MEETING 
Held on the 15th of March, 1899, at 20 Hanover Square, W., 
The President (E. M. Nelson, Esq.) in the Chair. 
The Minutes of the Meeting of 15th February last were read and 
confirmed, and were signed by the President. 
The List of Donations to the Society, exclusive of exchanges and 
reprints, received since the last Meeting, was read, and the thanks of the 
Meeting were voted to the donors. 
From 
Veley, V. H. and Lilian J., The Micro-Organism of Faulty Rum. 
(8vo, London, 1898) The Publisher. 
Slater, Chas., and Spitta, Edmund J., An Atlas of Bacteriology. 
(8vo, London, 1898) The Publishers. 
Cole, R. S., A Treatise on Photographic Optics. (8vo, London, 
1899) .. .. .. .. .. The Publishers. 
Ewart, J. C., The Penicuik Experiments. (8vo, London, 1899) .. The Publishers. 
The Naturalist’s Directory, 1899. (8vo, London, 1899) The Publisher. 
The President called attention to another donation (a fine example 
of Wilson’s Screw Barrel Microscope), received from their Treasurer, 
Mr. Suffolk. This instrument was probably 150 years old, and would 
be a valuable addition to the Cabinet, and he asked the Meeting to give 
the Treasurer a very hearty vote of thanks for the donation. This was 
carried by acclamation. 
The President said Mr. Curties had sent an old Microscope for exhi- 
bition. It was one made by Chevalier, of Paris, circa 1840, and was 
interesting as being one of the earliest Microscopes made after the intro- 
duction of achromatism, and it also appeared to be one of the last 
remnants of the box foot, a form of stand first adopted in 1704. He did 
not think that this instrument was nearly so well made as some of the 
old English instruments produced about the same time by Powell, Ross, 
and Smith. 
The thanks of the Meeting were voted to Mr. Curties for his ex- 
hibit. 
Mr. C. F- Rousselet said he had brought to the Meeting that evening 
a mounted slide of more than usual interest — being a specimen of the 
rare. rotifer Trochosplisera. The first species of this remarkable genus of 
the Rotifera was originally found in 1859 in the ditches in some rice 
fields in the Philippine Islands by Prof. Semper, who described it in 
1872. A translation of his paper was afterwards printed in the ‘ Monthly 
Microscopical Journal ’ for 1875. The organism was perfectly spherical, 
and was divided into two hemispheres by the ciliary wreath running 
round its equator, from which character it was named Tronhosphsera 
