Sold by Harrison and Sons, St. Martin’s Lane. 
PHILOSOPHICAL LEANS ACTION S. 
Series A. Containing Papers of a Mathematical or Physical Character. 
VoL. 200 (1903), Price £2 3s., with 39 Plates. 
VoL. 201 (1903), Price £1 16s. 6cl., with 3 Plates. 
Series B. Containing Papers of a Biological Character. 
VoL. 194 (1901), Price £3, with 49 Plates. 
VoL. 195 (1902), Price £1 Is. 6d., with 16 Plates. 
Demy 8vo, pp. 265. Price 5s. 
THE YEAE-BOOK OF THE EOYAL SOCIETY, 1903 . 
Principal Contents:—List of Fellows, Committees, &c.; Statutes and Eegulations; Business of the- 
Society during 1902, including Anniversary Meeting with President’s Address, Council’s Eeport, and 
Treasurer’s Accounts; Arrangements for 1903; Obituary Notices of Fellows deceased. 
Demy 8vo, pp. 427. Price, 12s. 6d. 
THE EECOED OF THE EOYAL SOCIETY. 
Second Edition. 1901. 
Containing an Account of the Foundation, History, &c., of the Society, with a Chronological List and 
Alphabetical Index of the Fellows from the Foundation. 
Published by Clay and Sons, Aye Maria Lane. 
CATALOGUE OF SCIENTIFIC PAPEES, 
COMPILED BY THE EOYAL SOCIETY. 
The volumes on sale as follows :—Vols. 1-6 (1800-63), cloth (vol. 1 in half-morocco), £4 net; half¬ 
morocco, £5 5s. net. Vols. 7, 8 (1864-73), cloth, £1 11s. 6d. net; half-morocco, £2 5s. net. Single 
vols., cloth, 20s.; half-morocco, 28s. net. Vols. 9, 10 (1874-83), cloth, £1 5s. net; half-morocco, 
£1 12.S. net. Vol. 11 (1874-83), cloth, £1 5s. net; half-morocco, £1 12s. net. Vol. 12 (Supple¬ 
mentary, 1800-1883), cloth, £1 5s. net; half-morocco, £1 12s. net. 
A reduction of price to Fellows of the Eoyal Society. 
Published by Kegan Paul, Trench, Trubner, and Co. 
In 1 vol., 4tc. Pp. 500. With 6 Chromolithographs of the remarkable Sunsets of 1883 and 
40 Maps and Diagrams. 
TEE EEUPTION OF KEAKATOA AND SUBSEQUENT PHENOMENA. 
Eeport of the Krakatoa Committee of the Eoyal Society. 
Edited by C. J. SYMONS, F.E.S. 
Price 30s. To Fellows of the Eoyal Society and Eoyal Meteorological Society, 20s. 
Continental Agents for the publications of the Eoyal Society, Messrs. Friedlander and Son, Berlin., 
