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of us, has lasted about forty years. His family have reason to 
thank him, and scientific history will not soon forget his 
labours amongst vegetation of the past, illustrating calm 
days in which coal grew to enrich us, or among the boulders 
and till, explaining the method in which they were 
deposited, making for us a pleasant and interesting land to 
dwell in. 
The following papers and communications have been read 
at the Ordinary and Sectional Meetings of the Society, 
during the Session 
October Iftli, 1881. — “On Drops Floating on the Surface of 
Water,” by Professor Osborne Reynolds, F.R.S. 
“On the Mean Intensity of Light that has passed through 
Absorbing Media,” by James Bottomley, D.Sc., F.C.S, 
“ Correction of the Formula used in Photometry by Absorption 
when the Medium is not perfectly transparent,” by James Bottom- 
ley, D.Sc., F.C.S. 
“ Note on the Colour Relations of Nickel, Cobalt, and Copper,” 
by James Bottomley, D.Sc., F.C.S. 
October 18th , 1881. — “On the Failure of certain Mathematical 
Solutions of the Problem of the Motion of a Solid through a Perfect 
Fluid,” by R. F. Gwyther, M.A. 
“The Sea Gull in Salford,” by William E. A. Axon, M.R.S.L. 
“ On the Numerical Extent of Personal Vocabularies,” by 
William E. A. Axon, M.R.S.L. 
November 1st, 1881.— '' On the Manufacture of Salt in Cheshire,” 
by Thomas Ward, Esq. 
November 7th, 1881 . — “On a Series of Preparations of Desmi- 
diae,” by Mr. Wills. 
November 8th, 1881. — “ Note on a Passage of Pollux relating 
to the Formation of Purple Dye,” by James Bottomley, D.Sc., F.C.S. 
November 15th, 1881. — On the Pronunciation of DeafMutes who 
have been taught to Articulate,” by William E. A. Axon, M.R.S.L. 
