iy CONTENTS. 



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Report of tlie Committee, consisting of Professor Oatlet, Dr. Farr, Mr. J. 

 W. L. Glaisher, Dr. Pole, Professor Fuller, Professor A. B. W. Ken- 

 nedy, Professor Clifford, and Mr. C. W. Merrifield, appointed to 

 consider the advisability and to estimate the expense of constructing Mr. 

 Babbage's Analytical Machine, and of printing Tables by its means. Drawn 

 up by Mr. Merrifield 02 



Third Report of the Committee, consisting of Dr. Joule, Professor Sir W. 

 Thomson, Professor Tait, Professor Balfour Stewart, and Professor 

 Maxwell, appointed for the purpose of determining the Mechanical Equiva- 

 lent of Heat 102 



Report of the Committee, consisting of Professor G. Forbes, Professor Sir 

 William Thomson, and Professor Everett, appointed for the purpose of 

 making arrangements for the taking of certain Observations in India, and 

 Observations on Atmospheric Electricity at Madeira 103 



Report of the Committee, consisting of Professor Sir William Thomson, 

 Professor Clerk Maxwell, Professor Tait, Dr. C. W. Siemens, Mr. F. J. 

 Bramwell, Mr. W. Froude, and Mr. J. T. Bottomley, for commencing 

 Secular Experiments upon the Elasticity of Wires. Drawn up by J. T. 

 Bottomley 103 



Report of the Committee on the Chemistry of some of the lesser-known Alka- 

 loids, especially Veratria and Bebeerine ; the Committee consisting of W. 

 Chandler Roberts, F.R.S. (Sec), Dr. C. R. Alder Wright, and Mr. 

 A. P. Luff 105 



Report on the best Means for the Development of Light from Coal-Gas of 

 different qualities, by a Committee consisting of Dr. William Wallace 

 (Secretary), Professor Dittmar, and Mr. Thomas Wills, F.C.S., F.I.C. ... 108 



Fourteenth Report of the Committee for Exploring Kent's Cavern, Devon- 

 shire — the Committee consisting of John Evans, F.R.S. , Sir John 

 Lubbock, Bart, F.R.S., Edward Vivian, M.A., George Busk, F.R.S., 

 William Boyd Dawkins, F.R.S., William Ayshford Sanford, F.G.S., 

 John Edward Lee, F.G.S., and William Pengelly, F.R.S. (Reporter)... 124 



Report of Committee, consisting of Professor Harkness and Mr. William 

 Jolly (H. M. Inspector of Schools), reappointed for the purpose of investi- 

 gating the Fossils in the North-west Highlands of Scotland. By Mr. 

 Jolly, Secretary 130 



Fifth Report of a Committee, consisting of Professor A. S. Herschel, M.A., 

 F.R.A.S., and G. A. Lebour, F.G.S., on Experiments to determine the 

 Thermal Conductivities of certain Rocks, showing especially the Geological 

 Aspects of the Investigation 133 



Report of the Committee, consisting of the Rev. H. F. Barnes-Lawrence, 

 C. Spence Bate, Esq., H. E. Dresser, Esq. (Sec), Dr. A. Gunther, J. E. 

 Hasting, Esq., Dr. Gwyn Jeffreys, Professor Newton, and the Rev. 

 Canon Tristram, appointed for the purpose of inquiring into the possibility 

 of establishing a " Close Time " for Indigenous Animals 146 



Report of the Committee appointed for the purpose of arranging with Dr. 

 Dohrn for the occupation of a Table at the Zoological Station at Naples ; 

 the Committee consisting of Mr. Dew-Smith (Secretary), Professor Huxley, 

 Dr. Carpenter, Dr. Gwyn Jeffreys, Mr. Sclater, Dr. M. Foster, Mr. F. 

 M. Balfour, and Professor Ray Lankester 149 



.Report of 'the Anthropometric Committee, consisting of Dr. Farr, Lord 

 Aberdare, Dr. W. Bain, Dr. Beddoe, Mr. Brabrook, Sir George 

 Campbell. Captain Dillon, The Earl of Ducie, Professor Flower, Mr. 

 Distant, Mr. F. P. Fellows, Mr. F. Galton, Mr. Park Harrison, Mr. J. 

 Heywi od, Mr. P. Hallett, Major-General Lane Fox (Sec), Inspector- 



