tS CONTENTS. 
PAGE 
I.—The Biological Nature of Filtrable Viruses. By Dr.H.H.Date 172 
J-—The Nature of Mind. By Dr. C. S. Myers ................ 181 
K.—The Advancement of Botany. By Prof. T. G. Hirt ........ 196 
L.—Educational Development, 1831-1931. By Sir C. Grant 
ROBERTSON] § 5 vicccx ceapk vie ake ELEN ga eee eee 215 
M.—The Changing Outlookin Agriculture. BySirE.JonnRussErt 231 
REPORTSION THE | STATE OF SCIENCE, EUGs. s,s ce «+ Seco elects eee 253 
SECTIONAL Ol RANSACTIONS | fais ces sittere olen he eee 327 
CONFERENCE OF DELEGATES OF CORRESPONDING SOCIETIES .......... 530 
EVENING: DISCOURSES) a5.scfoclss aciee% op eietee alas oats oe ee ee 539 
REFERENCES TO PUBLICATION OF COMMUNICATIONS TO THE SECTIONS.... 566 
APPENDIX. DIscUSsION ON THE EVOLUTION OF THE UNIVERSE ........ 573 
JIS 6 OY cag As Sc a ei ae RR (Ie aié-'a, bist cakes eR ae 611 
