| 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 including the Ground Floor and Meeting Room. Commencing with a note of lectures taking place at specific times during the evening.
Room 1:
1. Pure fused quartz ware, exhibited by the Thermal Syndicate Limited.
2. Some typical applications of the thermal-conductivity method of gas analysis, exhibited by the Cambridge Scientific Instrument Company Limited.
3. A miner's electric lamp to indicate and measure firedamp, exhibited by William Mundell Thornton.
4. Four diagrams of exact algebraic gyroscopic motion of five and ten-fold symmetry, simple models of the pendulum of Galileo, Huygens and Euler suitable for construction in elementary instruction, exhibited by Sir George Greenhill.
Room 2 (Reception Room):
5. Early compasses, exhibited by the Admiralty Compass Observatory.
6. The trajectograph: an instrument for determining the flight of a projectile in a resisting medium, exhibited by the Ordnance Committee, Royal Arsenal, Woolwich.
Room 3:
7. Early wireless apparatus, exhibited by the Science Museum.
8. Ferrous metallurgy, exhibited by the Brown-Firth Research Laboratories.
9. Lucernal microscopes (Samuel Washbourn), exhibited by Regimald S. Clay and Mr. Thomas H. Court.
10. Nickel spatulas for use in practical organic chemistry, simple models for illustrating the principles of stereo-isomerism, exhibited by Frederick Daniel Chattaway.
11. Illustrations to the early history of physical instruments, exhibited by Edward Neville da Costa Andrade.
12. Photographs of water waves generated by wind, exhibited by Harold Jeffreys.
Room 4:
13. Use of photo-electric cells of different alkali metals to detect a difference of colour in sources of light (Mr. T. H. Harrison), exhibited by the National Physical Laboratory.
14. All-metal mercury-vapour pumps, exhibited by the National Physical Laboratory (Dr. George William Clarkson Kaye).
15. Examples of electro-deposition, noise frequency analyser, low impedance thermionic valves, exhibited by the Metropolitan-Vickers Electrical Company Limited.
16. Double cube lumen comparator, exhibited by John Turner MacGregor-Morris and Mr. A. H. Mumford.
17. Dinosaur bones from Tendaguru, Tanganyika Territory, early Pleistocene mammals from Albert Nyanaza collected by Mr. E. J. [Edward James] Wayland for the Percy Sladen Memorial Trustees, Metaxytherium an extinct sea-cow, exhibited by the Geological Department of the British Museum (Natural History).
18. The earliest telescope in England, exhibited by George Hugh Gabb.
19. Gyroscopic tops, exhibited by James Gordon Gray.
20. Researches by Messrs. H. G. [Henry Gerard] Thornton and N. [Nagendra] Gangulee in connection with Bacillus radicicola the nodule organism infecting leguminous plants, exhibited by the Director, Rothamsted Experimental Station (Lawes Agricultural Trust).
21. A colour reaction for vitamin A (Dr. O. [Otto] Rosenheim and Dr. J. C. [Jack Ceceil] Drummond), salts of spermine (Dr. H. W. [Harold Ward] Dudley and Dr. O. Rosenheim), exhibited by the National Institute for Medical Research.
22. Magazine hair-break tester, exhibited by the Fine Cotton Spinners' and Doublers' Association Limited, Experimental Department (Dr. William Lawrence Balls).
23. Oceanic angler fishes (Mr. C. [Charles] Tate Regan), corelated modifications of structure in birds (Mr. W. P. [William Plane] Pycraft), exhibited by the Department of Zoology, British Museum (Natural History).
24. Fossil fishes from the Trias of Nottinghamshire, exhibited by Henry Hurd Swinnerton.
25. Specimens of the reproductive structures of the Caytoniales, exhibited by Hugh Hamshaw Thomas.
26. A study of function in relation to form in the mouth frames of recent and fossil starfish, exhibited by William Kingdon Spencer.
27. Tissue culture experiments, exhibited by the Imperial Cancer Research Fund (Dr. A. H. Drew).
28. Hygroscopic nuclei, settlement dust counter, exhibited by the Advisory Committee on Air Pollution (Dr. John Switzer Owens).
29. Maturation in tulips, exhibited by Mr. W. C. F. Newton (The John Innes Horticultural Institution).
30. 'Graft-hybrids' in Solanum, exhibited by Mr. C. A. Jorgensen (The John Innes Horticultural Institution).
31. Formation of Neumann lines in iron, exhibited by the National Physical Laboratory (Dr, Walter Rosenhain).
Ground Floor (Corridor) Room 5:
32. Electrical stethoscope, audiometer, artificial larynx, telephotographs, exhibited by the International Western Electric Company Limited.
33. Physical and metrological apparatus, exhibited by Messrs. Adam Hilger Limited.
Room 6:
34. A new arrangement of apparatus for the spark photography of bullets in flight, apparatus for studying colloid structure, new method (by x-rays) of showing the orientation of crystals in a metal when in a state of strain (where this cannot be detected by the microscope), x-ray spectra of cordite illustrating its colloidal nature, apparatus for determining the flash velocity and pressure factors of ignitory detonators, exhibited by the Research Department, Woolwich.
35. Portable apparatus for the measurement of the intensity of long wave wireless signals, exhibited by the National Physical Laboratory (Mr. J. Hollingsworth).
36. Simple forms of carbon-dioxide measuring instruments, exhibited by the National Physical Laboratory (Dr. Ezer Griffiths).
Meeting Room:
Cinematograph film showing Brownian motion [three demonstrations as under].
At 9.15 o'clock.
Sir Ernest Rutherford.
At 10.0 o'clock.
Dr. Francis William Aston.
At 10.30 o'clock
Dr. James Chadwick.
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