Ix 



EEPORT — 1886. 



LECTUEES TO THE OPERATIVE CLASSES. 



1867. 

 1868, 

 1869 



Dundee.. 

 Norwich 

 Exeter .. 



1870. Liverpool. 



1872. 

 1873. 

 1874. 

 1875. 

 1876. 



1877. 

 1879. 

 1880. 

 1881. 



1882. 



1883. 

 1884. 

 1885. 

 1886. 



Brighton 

 Bradford 

 Belfast . . , 

 Bristol .., 

 Glasgow 



Plymouth 

 Sheffield 

 Swansea 

 York 



Southamp- 

 ton. 

 Southport 

 Montreal ... 

 Aberdeen... 

 Birmingham 



Prof. J. Tyndall, LL.D., F.R.S. 

 Prof. Huxley, LL.D., F.R.S. 

 Prof. Miller, M.D., F.R.S. ... 



Sir John Lubbock, Bart.,M.P., 



F.R.S. 

 W.Spottiswoode,LL.D.,F.R.S. 

 C.W.Siemens, D.C.L., F.R.S. 



Prof. Odling, F.R.S 



Dr. W. B. Carpenter, F.R.S. 

 Commander Cameron, C.B., 



R.N. 



W. H. Preece 



W. E. Ayr ton 



H. Seebohm, F.Z.S 



Prof. Osborne Reynolds, 



F.R.S. 

 John Evans, D.C.L. Treas. R.S. 



Sir F. J. Bramwell, F.R.S. ... 



Prof. R.S. Ball, F.R.S 



H. B. Dixon, M.A 



Prof. W. C. Roberts-Austen. 

 F.R.S. 



Matter and Force. 



A Piece of Chalk. 



Experimental illustrations of the 

 modes of detecting the Composi- 

 tion of the Sun and other Heavenly 

 Bodies by the Spectrum. 



Savages, 



Sunshine, Sea, and Sky. 



Fuel. 



The Discovery of Oxygen. 



A Piece of Limestone. 



A Journey through Africa. 



Telegraphy and the Telephone. 



Electricity as a Motive Power. 



The North- East Passage. 



Raindrops, Hailstones, and Snow- 

 flakes. 



Unwritten History, and how to 

 read it. 



Talking by Electricity — Telephones. 



Comets. 



The Nature of Explosions. 



The Colours of Metals and their 

 Alloys. 



