LECTURES TO THE OPERATIVE CLASSES. lxiit 
LECTURES TO THE OPERATIVE CLASSES. 
Date and Place Lecturer Subject of Discourse 
coaten Prof. J. Tyndall, LL.D.,F.R.S.| Matter and Force. 
. Norwich ...| Prof. Huxley, LL.D., F.R.S. |A Piece of Chalk. 
Siecka Prof. Miller, M.D., F.R.S. ...| Experimental illustrations of the 
modes of detecting the Composi- 
tionof the Sun and other Heavenly 
Bodies by the Spectrum. 
. Liverpool. ./ Sir John Lubbock, Bart.,M.P.,| Savages. 
F.R.S. 
. Brighton ...| W.Spottiswoode,LL.D.,F.R.S.|Sunshine, Sea, and Sky. 
. Bradford ...|C. W. Siemens, D.C.L., F.R.S.| Fuel. 
. Belfast ......| Prof. Odling, F.R.S............. The Discovery of Oxygen. 
. Bristol ...... Dr. W. B. Carpenter, F.R.S. |A Piece of Limestone. 
. Glascow ...|Commander Cameron, C.B.,|A Journey through Africa. 
. Plymouth...) W. HUMrertA WA wkattinik.- Telegraphy and the Telephone. 
. Sheffield ...)W. EH. Ayrton ......cccc.sceeeee Electricity as a Motive Power. 
. Swansea ...|H. Seebohm, F.Z.S. ..........0. The North-East Passage. 
MMOTKS cae save Prof. Osborne Reynolds,|Raindrops, Hailstones, and Snow- 
F.R.S. flakes. 
. Southamp- |John Evans, D.C.L.,Treas.R.S.| Unwritten History, and how to 
» ton. read it. 
. Southport | Sir F. J. Bramwell, F.R.S. ...] Talking by Electricity—Telephones. 
. Montreal ...| Prof. R. S. Ball, F.R.S.,........|Comets. 
. Aberdeen ...|H. B. Dixon, M.A. ............ The Nature of Explosions. 
. Birmingham Prof. W. C. Roberts-Austen,|The Colours of Metals and their 
F.RB.S. Alloys. 
. Manchester | Prof. G. Forbes, F.R.S. ...... Electric Lighting. 
peat 2285 .3.06 Sir John Lubbock, Bart., M.P., |The Customs of Savage Races. 
F.R.S. 
. Newcastle- |B. Baker, M.Inst.C.B. .........|The Forth Bridge. 
upon-Tyne 
90. Leeds ...... Prof. J. Perry, D.Sc., F.R.S. |Spinning Tops. 
