| 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. Commencing with a note of lectures taking place at specific times during the evening.
Room 1 (Officers' Room):
1. Stream line filter, exhibited by Henry Selby Hele-Shaw.
2. Nephelometer with observation tubes of fixed height, exhibited by the Government Laboratory (Dr. Fox).
3. Sand figures showing the numerous resonant modes of vibration of telephone received diagrams, exhibited by John Turner MacGregor-Morris and Edward Mallett.
4. Models showing structure of tartaric and racemic acid (Mr. W. T. [William Thomas] Astbury), model showing arrangement of molecules in basic beryllium acetate, exhibited by Sir William Henry Bragg.
5. Photographs of lines of electric force, exhibited by Mr. E. E. Brooks.
6. Centenary of death of Dr. Edward Jenner, early meeting places of the Royal Society, exhibited by the Royal Society.
Room 2 (Council Room):
Mace of the Royal Society. Presented by King Charles II in 1663.
7. Large aluminium crystals, exhibited by Henry Cort Harold Carpenter.
8. Copies of some early scientific instruments, exhibited by the Science Museum.
Room 3 (Old Council Room):
9. Watercooled vacuum tubes, a low voltage kathode ray oscilloscope (in operation), Rochelle salt piezo-electric crystals, exhibited by the International Western Electric Company.
10. A new illuminator for opaque objects under the microscope, illumination of ordinary objects with polarized light under the microscope, exhibited by Conrad Beck.
11. A method of running a direct-current motor under a variable load or on a variable voltage in synchronism with a tuning fork, exhibited by the Cambridge Scientific Instrument Company Limited.
12. Examples of research work. Investigations in a coal mine (Mr. Eric Farmer), specimen curves of improved output and wastage (Dr. G. H. [George Herbert] Miles and Mr. Eric Farmer), intelligence tests (Dr. Cyril Burt), vocational selection tests for entrants to the engineering trades (Mr. M. H. Tagg), exhibited by the National Institute of Industrial Psychology (Charles Samuel Myers).
Room 4 (Principal Library):
13. The 'Boys' integrating and recording gas calorimeter, new small 'spot test' calorimeter, exhibited by Messrs. J. J. Griffin & Sons Limited.
14. Photomicrographs of crystals in colour mounted to show changing tints, exhibited by Dudley Northall-Laurie.
15. Iron mercury calorimeter (Dr. Ezer Griffiths and Mr. F. H. Schofield), x-ray spectra of alloys (Dr. E. A. Owen and Mr. G. D. Preston), photomicrographs of wood (Dr. G. W. C. [George William Clarkson] Kaye and Mr. W. F. Higgins), exhibited by the National Physical Laboratory..
16. Imitations of organic forms by drops and vortices of gelatin, exhibited by Emil Hatschek.
17. Flocculation and deflocculation in soils, exhibited by the Physical department, Rothamsted Experimental Station, Harpenden.
18. A levitating magnet, exhibited by Frederick Harrison Glew.
19. Effect of temperature on the biological action of light, exhibited by the National Institute for Medical Research (Dr. Leonard Hill and Dr. Albert Eidinow).
20. Mirror-image structures in cell-walls of cotton hairs, exhibited by William Lawrence Balls.
21. A new recording Kata-thermometer, exhibited by the National Institute of Medical Research (Dr. Edgar Hermann Joseph Schuster).
22. A direct reading thermionic voltmeter, exhibited by Eric Balliol Moullin.
23. Bust of Galileo carved in pear wood. Probably a work of about 1650-70, exhibited by George Hugh Gabb.
23a. Exhibition of three series of photographs illustrative of Heape and Gryll's rapid cinema machine, film photographs taken at the rate of 2,500 per second of a 15 inch glass vacuum globe broken by a hammer, film photographs taken at the rate of 2,000 per second of a 5 inch solid rubber ball shot for the mouth of a 2 1/16th inch diameter gun against a steel target, exhibited by Walter Heape.
24. On the value of markings on herring-scale as a means for estimating age and growth rate of the fish, exhibited by H J Buchanan-Wollaston.
25. Variation in red-legged partridges (Alectoris rufa), exhibited by Percy Roycroft Lowe.
26. Beetles showing transplanted heads, exhibited by Herbert Graham Cannon.
27. Fossils from the Devonian, Carboniferous and Triassic rocks of Chinese Tibet, exhibited by John Walter Gregory and Mr. C. J. Gregory.
28. Deep sea cables damaged by shark bites, contents of a crocodile's stomach, modifications of the dentition in some African vertebrates, exhibited by the Department of Zoology, British Museum (Natural History) (Charles Tate Regan and Martin Alistair Campbell Hinton).
29. A new method of isolating mummified fossil plants for purposes of microscopical examination, exhibited by the Botany School, Cambridge (John Walton).
30. Efwatakala grass Melinis minutiflora P. Beauv., rubiaceous plants with bacterial nodes in the leaves, exhibited by Arthur William Hill, the Director, Royal Botanic Gardens, Kew.
31. Stereo-photo micrographs of Hydracarina (water mites) in natural colours, exhibited by Henry Taverner.
Ground Floor Committee Room (Corridor):
32. Detection of feeble x-ray beams by smoke clouds, chronograph for use with a photographic recorder, autographic recording of dilatation of solids at high temperatures, exhibited by the Research Department, Woolwich.
33. The Frenophone, exhibited by Sidney George Brown.
Secretaries' Room:
34. Optical apparatus for research, exhibited by Messrs Adam Hilger Limited.
35. Improvements in the method of microscopical observation known as 'dark-ground illumination', an experimental demonstration with the microscopic interferometer, exhibited by the National Institute for Medical Research (Joseph Edwin Barnard, John Smiles, Mr. F. Welch).
36. Apparatus for measuring the compressibility of gases, exhibited by Irvine Masson.
37. Lubricating oils under electrostatic stresses, exhibited by the Anglo-Persian Oil Company Limited.
Meeting Room:
Demonstrations -
At 9.15 o'clock.
The nature and reproduction of vowel sounds, exhibited by Sir Richard Paget.
At 10.15 o'clock.
Cinematograph exhibition. A series of films the photographs of which were taken at rates varying from 2,000 to 3,000 per second, exhibited by Walter Heape.
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