136 THE NORTHERN MICROSCOPIST. 
LIVERPOOL MicroscopicaL Society. Hon. Sec.: Mr. I. C. Thompson. Meets 
First Friday in each month. 
MANCHESTER MricroscopricaL Society. Hon: Sec.: Mr. C. L. Cooke. Meets 
First Thursday in each month. 
MANCHESTER Cryprocamic Society meets Third Monday in each month, at Old 
Town Hall, King Street. 
MANCHESTER Science AssocraTion. Hon. Sec.: Mr. J. Percival Yates. Meetings 
Second and Fourth Tuesday in each month. 
NEWCASTLE-ON-TYNE. Nort oF ENGLAND Microscopicat Society. Hon. 
Sec.: Mr. M. H. Robson. Meets Second Wednesday in each month. 
NOTTINGHAM Literary aNnD PHILosopuHicaL Society. Natural Science Section 
hold et Fortnightly on Wednesdays. Hon. Sec.: Mr. A. H. Scott 
White, © 
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 MicroscoricaL Society. Hon. Sec., Mr. I. 
Renshaw, L.D.S.R.C.S. 
SHEFFIELD. No Microscopical Society in existence. 
NOTICES OF MEETINGS. 
BOLTON MICROSCOPICAL SOCIETY.—On Friday evening, May 6th, 
an ‘‘ open meeting ” was held in the Lecture Hall, Mawdsley-street Schools. 
There was a numerous attendance which was presided over by Mr. T. H. 
Winder. After the transaction of the usual business of the society, an able and 
instructive lecture on ‘‘ Parasites and Messmates,” was delivered by the president 
of the society, C. L. Jackson, Esq., F.R.M.S., whose indefatigable energy in 
microscopical research is best known to members of the association, but is at 
the same time not unfamiliar to the outside public. The address was illustrated 
by sketches of parasites thrown upon canvas, by means of the oxy-hydrogen 
light, very efficiently manipulated by Mr. Shipperbottom, and also by specimens 
placed under a number of microscopes contributed by members of the society. 
Mr.. Jackson proved himself to be well versed in his subject; his remarks, which 
were both instructive and amusing, showing that he had made the subject a 
special study. Parasites, he explained, were to be found in and upon all 
animated nature, not confined to the animal, but extending to the vegetable 
kingdom. They not only inhabited earth, air, and water, but they were to be 
found externally and internally in the human race. The lecturer, aided by the 
extraneous apparatus already mentioned, proceeded to describe the parasites 
which more or less assailed mankind, and then furnished ample proof that 
animals and fishes were subject to a similar kind of torment. The numerous 
illustrations, comical at times in their appearance, proved immensely pleasing to 
the audience and the company separated highly gratified with their evening’s 
enjoyment within the region of scientific enterprise. Mr. Rideout, the hon. sec., 
exhibited a number of objects by means of aclass microscope and a ‘‘dissecting 
microscope ” contributed by Mr. Aylward, Strangeways. Manchester. 
DONCASTER MICROSCOPICAL SOCIETY.—The eleventh ordinary 
meeting of the above Society was held on Wednesday evening, the 20th April, 
the Rev. Canon Brock (president), in the chair. Mr. Tindal was elected a 
member of the Society. Mr. Stiles (hon. sec.) then read a paper on the pre- 
paration and staining of wood sections. The procees of cutting these was fully 
described, and all details connected with it explained, both verbally and experi- 
mentally. Before being stained, wood sections require bleaching, and attention 
was drawn to the usual method of doing this. The purpose of staining is two-fold, 
not only is the natural beauty of the object greatly increased, but also its minute 
