NOTICES OF MEETINGS. 225 
HALIFAX. A Private Society. Members meet at each others houses. 
LEEDS. No Microscopical Society in existence. 
LIVERPOOL MicroscoricaL Socrety. Hon. Sec.: Mr. I. C. Thompson. Meets 
First Friday in each month. 
MANCHESTER Mricroscopicat Socrety. Hon: Sec.: Mr. C. L. Cooke. Meets 
First Thursday in each month. 
MANCHESTER Cryprocamic Society. Hon. Sec.: Mr. Thos. Rogers. Meets 
Third Monday in each month, at Old Town Hall, King Street. 
MANCHESTER Science AssociaTION. Hon. Sec.: Mr. J. Percival Yates. Meetings 
Second and Fourth Tuesday in each month. 
NEWCASTLE-ON-TYNE, Norta or ENGLAND MicroscopicaL Socrrty. Hon. 
Sec.: Mr. M. H. Robson. Meets Second Wednesday in each month. 
NOTTINGHAM LITERARY AND PHILOSOPHICAL SOCIETY. Natural Science Section 
hold meetings Fortnightly on Wednesdays. Hon. Sec.: Mr. A. H. Scott 
White, M.A. 
OLDHAM Microscoricat Society. Hon. Sec.: Mr. Charles Walters. Meets on the 
Third Thursday of each month, in the Club-room of the Lyceum. 
ROCHDALE AND WHITWORTH Microscopicat Society. Hon. Sec., Mr. I. 
Renshaw, L.D.S.R.C.S. 
SHEFFIELD. Hon. Sec., Mr. B. W. Wood. Meets on the First and Third Friday 
in each month. 
NOTICES OF MEETINGS. 
MANCHESTER MICROSCOPICAL SOCIETY.—The holiday time of 
the year (many members being away from home), and the weather favourable 
and more suited for outdoor pastime and recreation than close inside gatherings, 
for once had an appreciable effect on the attendance of members ; and had it 
not been for the presence of some score of visitors, who attended by special 
invitation, the meeting would have been rather dull. By arrangement, 
all business of a routine character was as far as possible dispensed with, 
and, in the absence, therefore, of a paper or lecture on any special subject, 
there remained only the occupation of examining a number of interesting slides 
exhibited by a dozen gentlemen who generously answered the call of the com- 
mittee and attended with their instruments. Amongst a number of objects— 
including Leptodora hyalina (both sexes) from Derwentwater, head of male 
Asiatic mosquito, and various beautiful polarizing objects—one slide was of 
special interest, and deserves more than a passing notice, both from a scientific 
point of view and as a handsome microscopic object. This was a double-stained 
section of the heel of a child, showing the glands of perspiration and structure 
of skin. Situated just beneath the skin, and found in almost every part of the 
surface of the body, are disposed sweat glands—small globular masses from 
which there ascends spiral conducting tubes which penetrate and have openings 
on the surface of the skin. Something like an idea may be formed of the num- 
ber of these glands when it is estimated that three thousand five hundred and 
twenty-eight exist in a square inch of surface of the body. Itis no unusual thing 
in microscopical text-books to see excellent drawings representing wonderful and 
beautiful structure in minute portions of both the animal and vegetable world ; 
but perfect slides, like the one in question, showing beautifully and in detail 
structure microscopically small and difficult to mount, are in a sense rarities. 
This section was exhibited by Mr. Thos. Brittain ; it is a fellow-section to the 
one which was exhibited by Messrs. Smith and Beck at the microscopical soirée 
held at the Gentleman’s Concert Hall the last time the British Association met 
in Manchester. The following gentlemen were exhibitors :—Messrs. John 
