NOTES AND QUERIES. 183 
drawings of microscopical objects, and a splendid collection of 
mounted sea-weeds. These exhibits are arranged in the first bay 
in the west corridor, just below the entrance from the main terrace, 
which corridor continues down through the piscicultural depart- 
ment to the aquarium. 
LivERPOOL MicroscopicaL Society.—The fourth meeting of 
the session was held at the Royal Institution on Friday, April 6th, 
when Dr. Wm. Carter read an interesting paper on “ Microscopic 
Study as a Mental Discipline,” and in the usual conversazione which 
ensued slides were exhibited to illustrate the paper. 
The fifth meeting of the session was held on the 4th of May, as 
a Microscopical Exhibition of living objects illustrative of the 
Fauna and Flora of the neighbourhood. 
MANCHESTER CRyproGAmic SocreTy.—April Meeting, at the 
Old Town Hall, Captain Cunliffe in the chair. Mr. Martindale 
communicated notes on Gomonema compactum (Ny). 
The Hon. Secretary exhibited specimens of Hypuum nitens, 
gathered last month in Western Manitoba. 
Mr. W. H. Pearson exhibited some rare hepatics: /amesontella 
Carringtonit (Balf), found on Ben Laorgh by Messrs. Wild and 
Holt; Leptoscyphus interrupta (Nees), found in Cheedale; and 
Cephalozia fluitans, on Carrington Moss by Mr. Holt. Cephalozia 
Turneri (Hook), by Mr. Pearson at Dolgelly. (New to Wales.) 
Mr. J. Cash read an interesting paper compiled from the M.S.S. 
of the late Mr. Wilson, author of Bryologia Britannica, on his first 
visit to Scotland, 1827, and his first visit to Ireland, 1829-30. 
MANCHESTER MicroscopicaL Society.—At the May meeting 
of this Society an extremely interesting paper on Gyrodactylus 
elegans was read by Mr. H. C. Chadwick, and which may be found 
printed in extenso in the present number. Mr. George E. Davis 
made a short communication on the photographic and visual pene- 
tration of objectives, and exhibited Mavicula rhomboides resolved 
into squares, and Amphipleura pellucida into short strize under Leitz 
homog. one-twelfth objective. Mr. Henry Hyde described the 
plants found during the last excursion. 
MounTING Srecrion.—On Wednesday evening, April 11, the 
usual monthly meeting for practical demonstration was held in the 
Board Room of the Mechanics Institution. 
The operator in the junior division was Mr. William Stanley, 
F.R.M.S., who mounted several slides of Mosses and Hepatics, 
by what is termed the boiling process. The object, after being 
carefully washed and placed in glycerine jelly on the slide, with 
the cover-glass and clip in position, is brought to the boiling point 
by being held over a lamp, in order to eliminate the air-bubbles 
which gather in and around the object, and are a source of much 
