80 PROCEEDINGS OF SOCIETIES. 
CHEMISTRY, 
a: Goniometrical analysis for determination of the chemical 
nature of crystals. Illustrated by Dr. Leeson’s and Ross’s 
Microgoniometers. 
12. Crystallization. 
13, 14, Chemical Crystalline preparations: Vegetable Alkaloids. Salts. 
Sublimations of Arsenic. Mercury. Antimony, &c. 
ADULTERATIONS, 
15. Adulteration of Quinine. 
- Honey. 
16. Coffee. 
¥ Chocolate, 
MINERALOGY. 
17, 18. Sections of Minerals :—Agate. Hyperstine. Avanturine, &c. 
19, Crystalline Minerals :—Ovwides of Copper. Phosphate of Lead. 
Pyrrhite, & 
20. Native Metals:—Gold. Silver. Copper. Antimony. 
Brruincuam Natursan History ann MicroscoPicaL 
Socrery. 
Durine the past quarter several interesting exhibitions have 
taken place at the microscopical meetings of the above-named 
Society. Amongst the specimens shown were :—Acronycta Alni, 
and Hunomidea apicuria ; a pair of Rumphomicron vulcant ; speci- 
mens of lower mountain limestone strata from below the Suspension 
Bridge at Clifton; of voleanic rock from near the cave of Alex- 
ander Selkirk at Juan Fernandez; Fuavosites Portlandica from 
Beachy Island, Wellington Sound, and others. Of the Favosites 
some beautiful sections were shown under the microscopes. 
A graphic and extremely interesting account of a week’s sojourn 
in Cornwall, illustrated by means of a map. Specimens, both 
botanical, mineral, and zoological, &c., were given by Mr. Henry 
Webb, at one of the meetings. A paper on the “Common 
House Fly,” by Mr. Thomas Fiddian, was also read. The ana- 
tomical portion of the subject was very carefully handled, and all 
points of difficulty explained. The means by which flies walk 
upon the ceiling or on any surface, with their backs downwards, 
was particularly pointed out; the old idea of the sucker on the 
feet being disproved, and the true instruments which enable the 
fly to accomplish this apparently difficult task were admirably ex- 
plained. The paper was illustrated by a very splendid lithographed 
diagram showing all the principal organs and structures in the 
body of the fly. 
At the Adjourned Annual Meeting of the Society, held on the 
18th ult., a new code of laws was adopted; and the Secretary’s 
