167 
Jan. 23. — “ On a Crystal of Selenite from the mud dredged out of 
the Suez Canal,” by E. W. Binney, F.R.S., F.G.S., 
President. 
“ On" Mineral Wool, and on the Utilisation of Slag,” 
by W. Brockbank, F.G.S. 
“ A Study of certain Tungsten Compounds, by Professor 
H. E. Roscoe, Ph.D., F.R.S., &c. 
Feb. 5.—“ On the Theories of the Origin and Spread of Typhoid 
Fever,” by Joseph Sidebotham, F.R.A.S. 
Feb. 6. — “ On the Magnetic Disturbances and the Aurora of 
February 4th, 1872,” by J. P. Joule, D.C.L. , 
F.R.S., V.P. 
“ On the Aurora of February 4th,” by Mr. Thomas 
Harrison. 
“ Note on the Destruction of St. Mary’s Church, 
Crumpsall, on the 4th January, 1872, by Fire from 
a Lightning Discharge,” by Joseph Baxendell, 
F.R.A.S. 
“ On a Group of Crystals of Calcite and Sulphide of 
Iron surrounding Stalactitic Bitumen,” by W. Boyd 
Dawkins, F.R.S. 
“ On the Boiling Points of the Normal Paraffins and 
some of their Derivatives,” by C. Schorlemmer, 
F.R.S. 
Feb. 20. — “ On a Specimen of Zygopteris Lacattii by E. W. 
Binney, F.R.S., F.G.S., President. 
“ Experiments on the Polarization of Platina Plates by 
Frictional Electricity,” by J. P. Joule, LL.D., 
F.R.S., V.P. 
“ On an Electrical Corona Resembling the Solar 
Corona,” by Professor Osborne Reynolds, M.A. 
“ On the Electro-Dynamic Effect the Induction of 
Statical Electricity causes in a Moving Body. 
The Induction of the Sun — a probable cause of 
Terrestrial Magnetism,” by Professor Osborne 
Reynolds, M.A. 
Feb. 26. — “ On Shells of Mollusca showing so-called Fungoid 
Growths,” by Mr. Mark Stirrup. 
