ube REPORT—1885. 
LECTURES TO THE OPERATIVE CLASSES. 
Date and Place Lecturer Subject of Discourse 
1867. Dundee...... Prof. J. Tyndall, LL.D.,F.R.S.| Matter and Force. 
1868. Norwich ...|Prof. Huxley, LL.D., F.R.S. |A Piece of Chalk. 
1869. Exeter ...... 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. 
1870. Liverpool...|Sir John Lubbock, Bart.,M.P.,|Savages. 
F.R.S. 
1872. Brighton ...|W.Spottiswoode,LL.D.,F.R.S.|Sunshine, Sea, and Sky. 
1872. Bradford ...|C. W. Siemens, D.C.L., F.R.S.| Fuel. 
1874, Belfast ...... Prot, Od ling OR. D.cscceserees The Discovery of Oxygen. 
1875. Bristol ...... Dr. W. B. Carpenter, F.R.S. |A Piece of Limestone. 
1876. Glasgow ...|Commander Cameron, C.B.,)A Journey through Africa. 
RN. 
1877. Elymouth...|W. H. Preece ......2..cscsesceseee Telegraphy and the Telephone. 
1879. Sheffield ...]W. E. Ayrton .......00...ss000e Electricity as a Motive Power. 
1880. Swansea ...|H. Seebohm, F.Z.S. ............ ;The North-East Passage. 
BSE WOLK ...cceres Prof. Osborne Reynolds,| Raindrops, Hailstones, and Snow- 
F.R.S. flakes. 
1882. Southamp- |John Evans, D.C.L. Treas.R.S.| Unwritten History, and how to 
ton. read it. 
1883. Southport |Sir F. J. Bramwell, F.R.S. ...| Talking by Electricity—Telephones. 
1884. Montreal ...|Prof. R. 8. Ball, F.RB.S.......... Comets. 
1885. Aberdeen,..|H. B. Dixon, M.A. ............ The Nature of Explosions, 
