| Description | Brief listing of exhibits and exhibitors at the Royal Society's annual displays at Burlington House, London, with descriptive text. Arranged by rooms. Rooms 1-4 and Ground Floor. No lantern slide displays are noted as taking place. The Royal Society coat of arms, is printed in red on the title page.
Room 1 (Officers' Room):
1. Transmission of speech by light, exhibited by Alexander Oliver Rankine.
2. Dr. G. E. [George Ellery] Hale's photographs of the Zeeman Effect in the spectra of sunspots, exhibited by Hugh Frank Newall.
3. Photographs of Nova Aquilla III 13th June 1918 and displaced spectra of Alpha Cygni, photographs of the Sun's disc (a) in integrated blue light (negative) (b) in K232 calcium light (positive, photographs of Nova Geminorum II 15th March-29th April 1912 showing the changes in stellar type from absorption characteristic of Alpha Cygni to that characteristic of Gamma Orionis, exhibited by the Solar Physics Laboratory, Cambridge.
4. Drawings of sunspots and faculae May-June 1919, progressive spectra of Nova Aquilae 1918, exhibited by Aloysius Laurence Cortie.
5. Photographs taken with the 72-inch reflector of the new observatory, Victoria, British Columbia, by J. S. [John Stanley] Plaskett, phootgraphs of the solar corona total eclipse of 8th June 1918, Lick Observatory Expedition, exhibited by the Royal Astronomical Society.
Room 2 (Council Room):
Mace of the Royal Society. Presented by King Charles II in 1663.
6. Aeroplane photographs illustrating the physical geography of Palestine (by permission of the Air Ministry), exhibited by Captain Hugh Hamshaw Thomas.
7. Photographs of British military cemeteries in France, exhibited by Arthur William Hill, the Assistant Director, Royal Gardens, Kew.
8. The detection of defects in aeroplane timber by the x-rays, exhibited by Major George William Clarkson Kaye and Dr. R. Knox.
9. Special productions of the Greta War, exhibited by Sir Robert Hadfield.
Room 3 (Old Council Room):
10. Young fishes and their food, Mendelian inheritance of eye-colour in Gammarus, coloured drawings of marine animals, exhibited by Edgar Johnson Allen, Mrs Elsie Wilkins Sexton and Dr. Marie Victoire Lebour for the Marine Biological Association, Plymouth.
11. Demonstration of directional wireless telegraphy, exhibited by Alan Archibald Campbell Swinton.
12. Weather study during the War, exhibited by the Meteorological Office.
13. Photographs, &c., illustrating pressure in explosions, exhibited by Sir William Garforth.
Room 4 (Principal Library):
14. A new form of cinematography, exhibited by Henry Reginald Arnulph Mallock.
15. Army form of apparatus for continuous oxygen administration, exhibited by John Scott Haldane.
16. The treatment of chronic cases of gas poisoning by means of continuous inhalation of oxygen, exhibited by Joseph Barcroft.
17. Apparatus for automatically administering to 'flying men' the amount of oxygen necessary at any altitude, a simple apparatus for the investigation of the effect of low oxygen pressure on 'flying men', exhibited by Georges Dreyer.
18. Experiments demonstrating the effect of vibration of the pivot on the stability of a pendulum, exhibited by the Cambridge Scientific Instrument Company Limited.
19. Radium luminous dial testing apparatus (Mr. J. W. T. [John] Walsh), three-electrode vacuum tube with circuits arranged to produce oscillations of telephone frequency (Mr. F. E. [Frank Edward] Smith F.R.S.), distant reading liquid depth indicator (Mr. E. A. Griffiths), exhibited by the National Physical Laboratory.
20. The stunting of plants in windy places, exhibited by Leonard Hill.
21. Standard and research aeronautical instruments, exhibited by the Royal Aircraft Establishment, Farnborough.
22. Course setting bomb sight for fitting to large bombing machines operating over the land (a somewhat similar type was used for anti-submarine work at sea), German periscopic bomb sight fitted to many large German bombing machines operating over the land, exhibited by the Director of Research, Air Ministry.
23. An example of sex-linkage in Begonia, exhibited by the John Innes Horticultural Institute.
24. 'Mineral Yeast', used in Germany during the War for human food, exhibited by Alfred Chaston Chapman.
25. Living sea-urchins reared from eggs developed in London in artificial sea-water, exhibited by Ernest William MacBride.
26. Demonstration illustrating the experimental transmission of Bilharzia infections of Man, exhibited by Robert Thomson Leiper.
27. Frog and tadpoles obtained by artificial parthenogenesis, exhibited by Edwin Stephen Goodrich and Mr. A. F. Coventry.
28. Families of the African Papilio dardanalus (merope) with the female parents, exhibited by Edward Bagnall Poulton.
29. Nature's methods for the destruction of microbes in war wounds, exhibited by Sir Almroth Edward Wright, Leonard Colebrook and Alexander Fleming.
30. Portrait of Dr. John Jeffries in pastel by John Russel R.A. Dr. Jeffries was, with Blanchard, the first to cross the Channel in a balloon, on 7 January 1785, an aeolipile dating from the period of the inception of the Royal Society - about 1650, exhibited by George Hugh Gabb.
31. The vision of the rainbow cup, exhibited by Miss Dorothy Muriel Wheeler
32. Models of fishes illustrating adaptive modifications in related genera, exhibited by Charles Tate Regan.
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