161 
Mercurial Air Exhauster,” by J. P. Joule, D.C.L., LL.D., F.E.S., 
&c., President. 
On the Influence of Acids on Iron and Steel,” by William H. 
Johnson, B.Sc. 
“ On Crystalline Sublimed Cupric Chloride,” by S. Carson 
(Student in the Laboratojy of the Owens College). Communicated 
by Professor H. E. Eoscoe, F.R.S. 
“ Memorandum on Brown-stapled Cotton,” by Major R. Trevor 
Clarke. Communicated by Dr. E. Schunck, F.R.S., V.P. 
“ On the Graphical Representation of the Movements of the 
Chest Wall in Respiration,” by Arthur Ransome, M.D., M.A. 
January 19th, 1874. — ‘*On the Similarity of Certain Crystal- 
lised Substances to Vegetable Forms,” by Josej)h Sidebotham, 
F.R.A.S. 
January 21th, 1874. ~~-“On a Source of Error in Mercurial 
Thermometers,” by Thomas M. Morgan, Student in the Laboratory 
of Owens College. Communicated by Professor H. E. Roscoe, 
F. R.S. 
“Notes on Fossil Lithothamnia (so-called Nulliporae),” by 
Arthur Wm. Waters, F.G.S. 
February 3rd, 1874. — “On the Theory of the Tides,” by David 
Win Stanley, Esq. 
“Rainfall at Old Trafford, Manchester, in the year 1873,” by 
G. V. Vernon, F.R.A.S., F.M.S. 
February \^th, 1874. — “The Northern Range of the Basques,” 
by W. Boyd Dawkins, M.A., F.R.S., F.S.A. 
February 2 ith, 1874. — “On the Drainage of Churchyards and 
Burial Grounds,” by E. W. Binney, F.R.S., F.G.S,, V.P. 
“ On the Effect of Acid on the Interior of Iron Wire,” by Pro- 
fessor Osborne Reynolds, M.A. 
“ On the Movements of the Chest in Respiration,” by Dr. 
Ransome, M.A. 
March 3rd, 1874. — “ Results of Rain-gauge Observations at 
Eccles, near Manchester, during the year 1873,” by Thomas 
Mackereth, F.R.A.S., F.M.S. 
March \^th, 1874. — “On Professor Renault’s Memoir on Speci- 
mens of Fossil Plants of the Genus Myelopteris,” by E. W. 
Binney, F.R.S., F.G.S., V.P. 
