275 
telegraphic communication, weaving and cutting plushes, 
velvets, carpets, &c., fluid meters, pumping apparatus, screw 
propellers, churns for agitating and evaporating fluids, tur- 
bines, hydraulic presses, steam ships and other vessels, 
anchors, steam boilers, life boats, war ships and their arma- 
ments, casks, machinery for cutting paper, leather, cloth, &c., 
machinery for punching, drilling, and riveting, omnibus and 
other carriages, folding fabrics, mechanism for engraving and 
otherwise copying paintings and other designs on fiat and 
carved surfaces, &c., &c. 
The following list of communications made during the 
past year proves that the scientific activity of the Society has 
in no wise diminished : — 
April 30 th, 1863. — “On the Wave of High Water, with Hints 
towards a New Theory of the Tides,” by Mr. Thomas Carrick. 
April 30 th, 1863. — “On the Number of Days on which Rain 
falls annually in London, from Observations made during the 56 
years, 1807-1862,” by G. Y. Vernon, F.R.A.S., M.B.M.S. 
April 30 th, 1863 . — “ On the Rain Fall at Oldham during the 
years 1836-62,” by John Heap, Esq. with remarks by G. Y. Vernon, 
F.R.A.S., M.B. M.S. 
May 12 th, 1863. — “Note on the History of Steam Navigation,” 
by AY. J. Alacquorn Rankine, F.R.S., &c. 
July 1st, 1863. — “The Complete Theory of Groups, being the 
Solution of the Mathematical Prize Question of the French 
Academy for 1860,” by Rev. Thos. P. Kirkman, ALA., F.R.S., &c. 
October 6th, 1863. — “ On Ten Ancient Spanish Coins taken in 
change at Malaga,” by John Harland, Esq., F.S.A., commimicated 
by Air. R. D. Darbishire. 
October 6th, 1863. — “On the Sound produced in the Electric 
Discharge,” by Professor Wm. Thomson, F.R.S., communicated 
by Professor Tait. 
October "26th, 1863. — “ Further Observations on the Carboni- 
ferous, Permian, and Triassic Strata of Cumberland and Dumfries,” 
by E. W. Binnev, F.R.S., F.G.S. 
