168 
January Wth, 1876. — ‘‘Note on a Method of Comparing the 
Tints of Coloured Solutions/’ by J. Bottomley, D.Sc. 
“ On Explosions of Fire Damp/’ By Bobert Rawson, Esq., Hon. 
Member of the Society. 
January 1876.—“ On the Life History of Lymexylon 
Navale,” by J. Sidebotham, F.R.A.S. 
“ On Psammodius Sulcicollis’” by J. Sidebotham, F.R.A.S. 
January 1876.—“ Stannic Arsenate/’ by William Carlton, 
Williams, F.C.S. 
February 8^4, 1876. — “On the Natural Gas from the Gas Wells 
in Butler County, Pennsylvania,” by Professor Sadtler, of the 
University of Pennsylvania. Communicated by Professor C. 
Schorl emmer, F.R.S. 
“ Notice of a recent discovery of a pre-Historic Burial Place, 
near Colombier, in Switzerland,” by William E. A. Axon, 
M.R.S.L., &c. 
“ On the Granites of Ravenglass and Criffel,” by Wm. Brock- 
bank, F.G.S. 
“ On Boulder Stones in the Manchester Drift,” by E. W. 
Binney, V.P., F.R.S. 
“ On the Formation of Azurite from Malachite,” by Charles A. 
Burghardt, Ph.D. 
“ On a Direct-Vision Spectroscope of great Dispersive Power,” 
by Arthur Schuster, Ph.D. 
“ On a New Absorptiometer,” by Arthur Schuster, Ph.D. 
February lith, 1876. — On a New British Moss — Hypnum 
nitidulum (Wahl),” by Mr. James Percival. 
“ On the Gradual Decrease of Wild Birds during the last 25 
years West of Manchester,” by John Plant, F.G.S. 
February 22nd, 1876.—“ Notes on a Collection of Apparatus 
Employed by Dr. Dalton, in his Researches, which is about to be 
Exhibited (by the Council of the Literary and Philosophical 
Society of Manchester) at the Loan Exhibition of Scientific Appa- 
ratus, at South Kensington,” by Professor Roscoe, F.R.S. 
“ On the Zoological Station and Aquarium at Naples,” by 
Arthur William Waters, F.G.S. 
