678 
PROCEEDINGS OF THE SOCIETY. 
MEETING 
Held on the 15th of November, 1899, at 20 Hanover Square, W. 
The President (E. M. Nelson, Esq.) in the Chair. 
The Minutes of the Meeting of 18th of October, 1899, were read 
and confirmed, and were signed by the President. 
The following Donation to the Society, received since the last Meet- 
ing, was announced, and the thanks of the Society were voted to the 
Donor. 
From 
Transactions of the Jenner Institute of Preventive Medi-'i The Jenner Institute of 
cine. (8 vo, London, 1899) / Preventive Medicine. 
Dr. Hebb called attention to the volume of the Transactions of the 
Jenner Institute, which he thought would be of great interest to any one 
who was engaged in bacteriological work. 
Mr. C. Lees Curties exhibited a new form of portable Microscope by 
Leitz, which was made with a folding V-shaped foot, and a stage which 
fitted into a socket, from which it could easily be removed to enable the 
instrument to be packed away into a very small space. The body was 
not made to incline, but was furnished with both coarse and fine adjust- 
ments, and the stage was fitted with a modified form of Abbe condenser 
with iris diaphragm. There was nothing specially new, either in the 
pattern or in the accessories, beyond the means contrived to secure ex- 
treme portability. 
The President thought this instrument was likely to be of much use 
to any one who wanted something very portable. Its great compactness 
was effected in a simple and ingenious manner, whilst the working parts 
were well made and finished. 
The President read a short note descriptive of three simple hand- 
Microscopes on the Coddington principle, sent for exhibition by 
Mr. Edward Swan (see p. 643). 
A Microtome, sent by Prof. J. W. Groves, was exhibited, and a letter, 
describing the modifications made by the exhibitor, was read by the 
Secretary, in which Prof. Groves says, “ By experience in vegetable work, 
I found that the frequent changing of material caused the screw at the 
lower end of the tube of the ordinary hand-microtome to wear out pretty 
rapidly. I therefore got Swift to make me this little machine, in which 
the screw which raises the material is attached to an outer tube which 
slides up over the ordinary tube in grooves, and having reached the top, 
is turned slightly to the left and clamped by a small screw, which serves 
the double purpose of preventing the outer one being inadvertently turned 
