Sold bt Hakkison and Sons, St. Martin’s Lanb. 
Demy 8 vo, pp. 427. Price 125, 6d. ; 
■ : • ■ BECOR© OP THE ROYAL SOGI]^.' ' 
Second Edition. 1901. 
Containing an Acconnt of the Foundation, History, Ac., of the Society, with a Chronological List and 
Alphabetical Index of the Fellows from the Foundation. 
Demy 8 vo, pp. 265. Price 5s. 
THE YEAR-BOOK OF THE ROYAL SOOIiETY, 1903. 
Principal contentsList of Fellows, Committees, &c.; Statutes and Regulations; Business of the 
Society during 1902, including Anniversary Meeting with President’s Address, Council’s Report, 
and Treasurer’s Accounts ; Arrangements for 1903; Obituary Notices of Fellows deceased. 
PHILOSOPHICAL TRANSACTIONS. 
Series A. Containing Papers of a Mathematical or Physical Character. 
VoL. 199 (1902), Price £1 65 . 
VoL. 200 (1903), Price £2 3s., with 39 Plates. 
Series B. Containing Papers of a Biological Character. 
VoL. 194 (1901), Price £3, with 49 Plates. 
VoL, 195 (1902), Price £1 7s. 6d., with 16 Plates, 
Published by Clay and Sons, Aye Maria Lane. 
CATALOGUE OF SCIENTIFIC PAPERS, 
COMPILED BY THE ROYAL SOCIETY. 
The volumes on sale as follows i—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 lls. Gd, net; half-morocco, £2 Ss. net. Single 
vols., cloth, 20s.; half-morocco, 28s. net. Yols. 9, 10 (1874—83), cloth, £1 5 s. net; half-morocco, 
£1 12s. net. Vol. 11 (1874-83), cloth, £1 5s. net; half-morocco, £1 12s. net. Vol. 12 (Supple¬ 
mentary, 1800-1883), cloth, £l 5s. net; half-morocco, £1 12s. net. 
A reduction of price to Fellows of the Royal Seciety. 
Published by Kegan Paul, Trench, Trubnek and Co. 
A few copies at the reduced price of £1, Is. (published at £3). 
Royal 4to, pp. iv.—936, cloth. With 51 Lithographic and Photographic Plates. 
A MONOGRAPH OF THE HORNY SPONGES. 
By r. VON LENDENPELD. 
A further reduction of price to Fellows of the Royal Society,; 
Published by Kegan Paul, Trench, Trubnek and Co. 
In 1 vol., 4to. Pp. 600, With 6 Chromolithographs of the remarkable Sunsets of 1883 and 
40 Slaps and Diagrams. 
THE EllUPTION OF KRAKATOA AND SUBSEQUENT PHENOJMENA. 
Report of the Krakatoa Committee of the Royal Society. 
Edited by G. J. SYMONS, F.R.S. 
Price 30s. To Fellows of the Royal Society and Royal Meteorological Society, 20s, 
Published by Kegan Paul, Trench, Trubner, and Co, 
Royal 4to, pp. xiv.—326, cloth. Price 21s, 
OBSERVATIONS OF THE INTERNATIONAL POLAR EXPEDITIONS. 
1882-1883. 
FORT RAE. 
With 32 Lithographic Folding Plates. 
A reduction of price to Fellows of the Royal Society. 
Continental Agents for the publications of the Royal Society, Messrs. FriedlXnder and Son, Berlin. 
