Contents. 
PAGE 
A Comparative Study of the dominant Phanerogamic and Higher 
Cryptogamic Flora of Aquatic Habit, in Three Lake Areas of 
Scotland. By George West. (With Fifty-five Plates.) Issued 
separately November 11, 1905, ..... 967 
Magnetic Quality in a Boscovichian Assemblage of Molecular 
Magnets. By Dr W. Peddie. Issued separately November 20, 
1905, . . . . . . . 1025 
Deep Sea Ship-Waves. ( Continued from Proc. B.S.E., January 
23, 1905.) By Lord Kelvin. Issued separately December 1 1 , 
1905, ........ 1060 
Complete Heart-block, with Dissociation of the Action of the 
Auricles and Ventricles. By W. T. Ritchie, M.D., F.R.C.P.E. 
Communicated by Dr George A. Gibson. Issued separately 
December 14, 1905, ...... 1085 
A Regular Fortnightly Exploration of the Plankton of the two 
Icelandic Lakes, Thingvallavatn and Myvatn. By C. H. 
Ostenfeld, Inspector of the Botanical Museum, Copenhagen, 
and Dr C. Wesenberg-Lund. Communicated by Sir John 
Murray, K.C.B., F.R.S. (With Three Plates.) Issued separ- 
ately January 5, 1906, ...... 1092 
Meetings of the Royal Society — Sessions 1903-1905, . . 1168 
Donations to the Library, . . . . . .1194 
Obituary Notices, ...... 1228 
Abstract of Accounts for Session 1904-1905, . . . 1241 
Index, ........ 1252; 
