184 
March 11 th, 1878. — “ On Bryozoa,” by Arthur Wm. Waters, 
F.G.S. 
“On Metallic Growths on the Surfaces of Specimens of Auriferous 
Quartz from Australia and North Wales,” by John Plant, F.G.S. 
March 19 th, 1878. — “On a Remarkable Flash of Lightning,” 
by B. St. J. B. Joule, Esq. 
“ On a Barometer,” by Dr. J. P. Joule, F.R.S., &c. 
“On a New Form of Portable Sprengel Pump,” by C. H. Stearn, 
Esq. 
“ A Comparison of the Standard Barometer of the Owens College 
Physical Laboratory with the Working Barometer,” by M. 
Morisabro Hiraoka, student of Owens College. Communicated by 
Professor B. Stewart, LL.D., F.R.S. 
“On a New Calorimeter,” by J. B. Hannay, F.R.S.E., Assistant 
Lecturer on Chemistry, Owens College. 
April 2nd, 1878. — Three Letters from the late Sir William 
Fairbairn, Bart., F.R.S., a former president of the Society, to the 
late Professor Hodgkinson, F.R.S., also a former president of the 
Society. Communicated by E. W. Binney, F.R.S., F.G.S., President. 
“ On Aurin,” by R. S. Dale, B.A., and C. Schorlemmer, F.R.S. 
“ The Origin of some Ores of Copper (Part II.),” by Charles A. 
Burghardt, Ph.D., the Owens College. 
April 1 6th, 1878. — “On Indigo-blue from Polygonum tinctorium 
and other Plants,” by Edward Schunck, Ph.D., F.R.S. 
“ On the Internal Cohesion of Liquids,” by Professor Osborne 
Reynolds, M.A., F.R.S. 
“ On the Estimation of Hypo-sulphites and Sulphites,” by F. 
Grossmann, Ph. D. Communicated by Professor Roscoe, F.R.S. 
“ On the Action of Iodine Trichloride on Carbon Disulphide,” 
by J. B. Hannay, F.R.S.E., Assistant Lecturer on Chemistry in 
the Owens College. Communicated by Professor Roscoe, F.R.S., &c. 
Many of the above papers have already been printed in 
the new volume of Memoirs, and others have been passed 
by the Council for printing. 
The Council consider it desirable to continue the system 
of electing Sectional Associates during the ensuing session, 
