689 
PROCEEDINGS OF THE SOCIETY. 
MEETING 
Held on October 19th, 1898, at 20 Hanover Square, W., 
The President, E. M. Nelson, Esq., in the Chair. 
Ths Minutes of the Meeting of June 15tli 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 read, and the thanks of the 
Meeting were voted to the donors. 
From 
Zahn, J., Oculus Artificialis. (2nd edition, Nuremberg, 
1702) The President. 
Catalogue of Tertiary Moll usca. Parti. (8 vo, London, 1 The Trustees of the 
1897) ) British Museum. 
Annual Report of the Board of Agriculture. (Svo,] 
London, 1898) ? The Board of 
The Journal of the Board of Agriculture. Yol. v. No. 2. f Agriculture. 
(8vo, London, 1898) j 
Lafar, F., Technical Mycology. Yol. i. (8vo, London, 
1898) The Publishers. 
Photography Annual for 1898. (Svo, London, 1898) .. Mr. P. E. B. Jourdain. 
The Illustrated Annual of Microscopy. (4to, London, 
1898) The Publishers. 
Journal of Proceedings of the Dublin Microscopical Club,) The Dublin 
10 parts j Microscopical Club. 
Annual Reports (18th to 23rd) of the American Micro-) President of the American 
scopical Club / Microscopical Club. 
Portrait of Mr. Henry Perigal Mr. R. W. Craig ie. 
Two Portraits of Mr. Henry Perigal \ The Executors of 
A Solar Microscope / Mr. Henry Perigal. 
A Microscope by Benjamin Martin . . . . Mr. Alfred E. Fryett. 
A Photograph of the Society’s Room at King’s College . . Mr. Washington Teasdale. 
8 Slides of Diatoms, 2 Test-plates, 2 Micrometers, and 
1 Diffraction-plate Mr. H. J. Grayson. 
The President said that Messrs. Baker had sent for exhibition one 
of Reichert’s Microscopes fitted with a reflector placed in the tube higher 
up than the back lens of the objective, by means of which the light was 
thrown upon the object through the objective. The idea was very old, 
and when first adopted it was thought to be useful in the examination 
of diatoms. It became obsolete for a time, but had now been revived 
for use in steel-works for examination of the fractures of the metal, for 
which purpose this method of illumination was said to be specially 
advantageous. He was very glad to see the use of the Microscope ex- 
tending in this way to the processes of manufacture. This illuminator 
was figured in the Journal last year, p. 334, but it had not been exhibited 
at their meetings until now. 
3 a 2 
