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 
1831 to 1874 (of which more than 15 copies remain), at 2s. 6d. per volume ; 
after that date, at two-thirds of the Publication Price. A few sets, from 
1831 to 1874 inclusive, may also be obtained at £10 per set. 
Associates for the Meeting in 1885 may obtain the Volume for the Year at two-thirds 
of the Publication Price. 
PROCEEDINGS ortue FIRST anp SECOND MEETINGS, at York 
and Oxford, 1831 and 1832, Published at 13s. 6d. 
ContTENTs :—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. Cumming, on Thermo-Electri- 
city ;—Sir D. Brewster, on the Progress of Optics ;—Rev. W. Whewell, on 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 or razr 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, 
