CONTENTS Vii 



1922. PAGE 



Mar. 10. — Thomas R. Merton— Problems in the Variability 



of Spectra . ... ... ... ... ... 526 



„ 17. — A. P. Laurie— The Pigments and Mediums of 



the Old Masters 530 



„ 24. — F. G. Donnan — Auxiliary International Languages 531 



„ 31. — Arthur B. Walkley — Jane Austen ... ... 552 



April 3. — General Meeting 553 



„ 7. — Sir Ernest Rutherford— Evolution of the 



Elements 637 



„ 28. — Arthur Harden— Vitamin Problems 556 



May 1. — Annual Meeting ... ... ... ... ... 559 



„ 5. — Michael Grabham — Biological Studies in Madeira 561 



„ 8. — General Meeting ... ... ... ... ... 577 



„ 12.— H. H. Dale— The Search for Specific Remedies... 635 



„ 19. — Sir William Bragg — The Structure of Organic 



Crystals 581 



„ 26.— W. E. Dalby— The Internal Combustion Engine 589 



June 2. — Hon. Maurice Baring— Gilbert and Sullivan ... 594 



„ 9. — Joseph Barcroft— Physiological Effects at High 



Altitudes in Peru ... ... ... ... 608 



„ ] 2. —General Meeting 618 



July 3.— General Meeting 621 



Nov. 6. — General Meeting ... ... ... 624 



Dec. 4. — General Meeting ... ... ... ... ... 631 



Index— Vol. XXIII 639 



