Ixii 



REPORT — 1891. 



Date and Place 



1872. Brighton 



1873. Bradford 



1874. Belfast... 



1875. Bristol .... 



1876. Glasgow . 



1877. Plymouth. 



1878. Dublin 



1879. Sheffield 



1880. Swansea 



1881. York 



1882. Southamp- 



ton. 



1883. Southport 



1884. Montreal... 



1885. Aberdeen... 



1886. Birmingham 



1887. Manchester 



1888. Bath 



1889. Newcastle- 



upon-Tyne 



1890. Leeds 



1891. Cardiff 



Lecturer 



Prof. P. Martin Duncan, M.B., 



F.R.S. 

 Prof. W. K. Clifford 



Prof. W. CWil liamson, F.R.S 

 Prof. Clerk Maxwell, F.R.S. 

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



F.R.S. 

 Prof. Huxley, F.R.S 



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



F. J. Bramwell, F.R.S 



Prof. Tait, F.R.S.B 



Sir Wj'ville Thomson, F.R.S. 

 W. Warington Smyth, M.A., 

 F.R.S. 



Prof. Odling, F.R.S 



G. J. Romanes, F.L.S 



Prof. Dewar, F.R.S 



W. Crookes, F.R.S 



Prof. E. Ray Lankester, F.R.S. 

 Prof .W.Boyd Dawkins, F.R.S. 



Francis Galton, F.R.S 



Prof. Huxley, Sec. R.S 



W. Spottiswoode, Pres. R.S. 



Prof. Sir Wm. Thomson, F.R.S. 

 Prof. H. N. Moseley, F.R.S. 

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



Prof. J. G. McKendrick, 

 F.R.S.E. 



Prof. 0. J. Lodge, D.Sc 



Rev. W. H. Dallinger, F.R.S. 



Prof. W. G.Adams, F.R.S..., 



John Murray, F.R.S.E 



A, W. Riicker, M.A., F.R.S. 

 Prof. W. Rutherford, M.D. ... 

 Prof. H. B. Dixon, F.R.S. ... 

 Col. Sir F. de Winton, 



K.C.M.G. 

 Prof. W. E. Ayrton, F.R.S. ... 



Prof. T. G. Bonney, D.Sc, 



F.R.S. 

 Prof. W. C. Robert.'i-Austen, 



F.R.S. 

 Walter Gardiner, M.A 



Subject of Discourse 



E. B. Poulton, M.A., F.R.S.... 

 Prof. C. Vernon Boys, F.R.S. 

 Prof.L. C. Miall,F.L.S.,F.G.S. 



Prof. A. W. Riicker, M. A.,F.R.S. 



Insect Metamorphosis. 



The Aims and Instruments of Scien- 

 tific Thought. 

 Coal and Coal Plants. 

 Molecules. 

 Common Wild Flowers considered 



in relation to Insects. 

 The Hypothesis that Animals are 



Automata, and its History. 

 The Colours of Polarised Light. 

 Railway Safety Appliances. 

 Force. 



The Clialh iiflrr Expedition. 

 The Physical Phenomena connected 



with the Mines of Cornwall and 



Devon. 

 The new Elemeut, Gallium. 

 Animal Intelligence. 

 Dissociation, or Modern Ideas of 



Chemical Action. 

 Radiant, Matter. 

 Degeneration. 

 Prinu^val Man. 

 Mental Imagery. 

 The Rise and Progress of Palason^ 



tology. 

 The Electric Discharge, its Forms 



and its Functions. 

 Tides. 



Pelagic Life. 

 Recent Researches on the Distance 



of the Sun. 

 Galvanic and Animal Electricity. 



Dust. 



The Modern Microscope in Re- 

 searches on the Least and Lowest 

 Forms of Life. 



The Electric Light and Atmospheric 

 Absorption. 



The Great Ocean Bafiins. 



Soap Bubbles. 



The Sense of Hearing. 



The Rate of Explosions in Gases. 



Explorations in Central Africa. 



The Electrical Transmission of 



Power. 

 The Foundation Stones of the Earth's 



Crust. 

 The Hardening and Tempering of 



Steel. 

 How Plants maintain themselves in 



the Struggle for Existence. 

 Mimicry. 



Quartz Fibres and their Applications. 

 Some Difficulties in the Life of 



Aquatic Insects. 

 Electrical Stress. 



