BRITISH ASSOCIATION FOR THE ADVANCEMENT 



OF SCIENCE. 



Life Members (since 1845), and all Annual Members who have not 

 intermitted their Subscription, receive gratis all Reports published after 

 the date of their Membership. Any other volume they require may be 

 obtained on application at the Office of the Association, 22 Albemarle 

 Street, Piccadilly, London, W., at the following prices, viz. — Reports for 

 1849-78, at two-thirds of the Publication Price ; and, for the purpose of 

 completing their sets, any of the first seventeen volumes (of which more 

 than 100 copies remain) at one-third of the Publication Price. 



Associates for the Meeting in 1878 may obtain the Volume for the Year at two-thirds 



of the Publication Price. 



PROCEEDINGS of the FIRST and SECOND MEETINGS, at York 

 and Oxford, 1831 and 1832, Published at 13s. 6d. 



Contents : — Prof. Airy, on the Progress of Astronomy ; — J. W. Lubbock, on the 

 Tides ; — Prof. Forbes, on the Present State of Meteorology ; — Prof. Powell, on the 

 Present State of the Science of Radiant Heat ; — Prof. Camming, on Thermo-Electri- 

 city ;— Sir D. Brewster, on the Progress of Optics ;— Rev.W. WhewelLon the Present 

 State of Mineralogy; — Rev. W. D. Conybeare, on the Recent Progress and Present 

 State of Geology ;— Dr. Pritchard's Review of Philological and Physical Researches. 



Together with Papers on Mathematics, Optics, Acoustics, Magnetism, Electricity, 

 Chemistry, Meteorology, Geography, Geology, Zoology, Anatomy, Physiology, Botany, 

 and the Arts ; and an Exposition of the Objects and Plan of the Association, &c. 



PROCEEDINGS of the THIRD MEETING, at Cambridge, 1833, 

 Published at 12s. (Out of Print.) 



Contents:— Proceedings of the Meeting ; — John Taylor, on Mineral Veins ; — Dr. 

 Lindley, on the Philosophy of Botany; — Dr. Henry, on the Physiology of the Nervous 

 System ; — P. Barlow, on the Strength of Materials ; — S. H. Christie, on the Magnetism 

 of the Earth ; — Rev. J. Challis, on the Analytical Theory of Hydrostatics and Hy- 

 drodynamics ; — G. Rennie, on Hydraulics as a Branch of Engineering, Part I.; — Rev. 

 G. Peacock, on certain Branches of Analysis. 



Together with Papers on Mathematics and Physics, Philosophical Instruments and 

 Mechanical Arts, Natural History, Anatomy, Physiology, and History of Science. 



PROCEEDINGS of the FOURTH MEETING, at Edinburgh, 1834, 

 Published at 15s. 



Contents : — H. G. Rogers, on the Geology of North America ; — Dr. C. Henry, on 

 the Laws of Contagion ;— Prof. Clark, on Animal Physiology ;— Rev. L. Jenynsj on 



