172 
February 20th, 1867. — “ On the Reversed Action of Light in 
Photography,” by Mr. Joseph Sidebotham. 
March 6th, 1867. — “On a Section of the Drift and the Under- 
lying Triassic and Coal Measures at Ardwick,” by E. W. Binney, 
F.R.S., F.G.S. 
March 5th, 1867. — “On Some of the Conditions of Molecular 
Action,” by Arthur Ransome, M.B., M.A., Cantab. 
March 1 2th, 1867. — “On Photographs taken during the Eclipse 
of the Sun, March 6th, 1867,” by Alfred Brothers, F.R.A.S. 
March 10th, 1867. — “ Observations of the Eclipse of the Sun, 
March 6th, 1867,” by J. B. Dancer, F.R.A.S. 
March 10th, 1867. — “On an Apparatus for Determining the 
Horizontal Magnetic Intensity in Absolute Measure,” by J. P. Joule, 
LL.D., F.R.S., &c., Y.P. 
March 19th, 1867. — “Note on the Tangent Galvanometer,” by 
J. P. Joule, LL.D., F.R.S., &c., V.P. 
March 10th, 1867. — “On a Section of the Drift Deposits in the 
Banks of the Ribble, near Balderston Hall,” by Edward Hull, 
B.A., F.G.S. 
April 2nd, 1867. — “On the Microscopical Examination of Coal 
Ash or Dust from the Flue of a Furnace, Illustrated by the 
Microscope,” by J. B. Dancer, F.R.A.S. 
April 2nd, 1867. — “On the Galvanometer,” by William Jack, 
M.A., Professor of Natural Philosophy at Owens College. 
April 2nd, 1867. — “Additional Note on the Galvanometer,” by 
J. P. Joule, LL.D., F.R.S., &o., V.P. 
April 2nd, 1867. — “Notes on the Smallest and Simplest Forms 
of Matter and its Relations to Mechanical Forces,” by Mr. J. C. 
Dyer, V.P. 
April 2nd, 1867. — “Variable Star Ephemeris for 1867, calcu- 
lated from the Elements given in Dr. Schonfeld’s Catalogue,” by 
J. R. Hind, F.R.S., Superintendent of the “ Nautical Almanac,” 
and Honorary Member of the Society. 
April Oth , 1867. — “Note on Photography in 1787,” by Alfred 
Brothers, F.R.A.S. 
April 1 Oth, 1867. — “On a New Form of the Dynamic Method 
for Measuring the Magnetic Dip,” by Sir William Thomson, M.A., 
D.C.L., F.R.S., &c., Honorary Member of the Society. 
