| 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, Ground Floor and Meeting Room. The programme commences with a full description of a lecture taking place during the evening and the catalogue of exhibits begins with a disclaimer: 'The descriptions of Exhibits in this Catalogue are supplied by the Exhibitors, who alone are responsible for their accuracy'.
Meeting Room:
A lecture, illustrated by lantern slides will be given at 9.30 and 10.15 o'clock.
The flight of the pterodactyls, exhibited by David Meredith Seares Watson.
Room 1:
1. Demonstration of the frequency analysis of a modulated continuous oscillation, demonstration of the reception and recording of signals from the Orfordness Revolving Wireless Beacon, exhibit of radio transmitting and receiving apparatus for wave-lengths 4-10 metres, exhibited by the National Physical Laboratory (work carried out for the Radio Research Board of the Department of Scientific and Industrial Research by the Wireless Division).
2. Multiple thermoelement type hygrometer for use in ship's holds (the Physics Department), exhibited by the National Physical Laboratory.
3. Friction and wear tests on pivots and jewels (The Metrology Department), exhibited by the National Physical Laboratory.
Room 2 (Reception Room):
4. Illuminated coloured transparent photographs of the natural vegetation of South Africa, exhibited by Dr. Illtyd Pole Evans and Mrs. Mary R. H. Pole Evans.
Room 3:
5. Primula sinensis and P. obconica, Primula obconica, Pyrus malus, exhibited by the John Innes Horticultural Institution.
6. Recording microphotometer, exhibited by the Solar Physics Observatory, Cambridge, and the Cambridge Instrument Company.
7. Formation of methaemoglobin in red muscle, control of wastage in citrus and other fruits by treatment with acetaldehyde, exhibited by the Low Temperature Station, Cambridge.
Room 4 (Principal Library):
8. The use of anatomical methods in investigating the technical properties of timbers, exhibited by the Forest Products Research Laboratory (Department of Scientific and Industrial Research).
9. The mechanism of ridge formation in a sounding tube, exhibited by Edward Neville da Costa Andrade.
10. Triboluminescence of Zinc-blende from Tsumeb, South-West Africa, exhibited by the Department of Mineralogy, British Museum (Natural History) (Dr. Leonard James Spencer).
11. X-ray photographs and crystal models illustrating the structure of vitreous and amorphous solids (Mr. J. T. [John Turton] Randall and Mr. H. P. Rooksby), exhibited by the Research Laboratories of the General Electric Company.
12. Teeth of Synconolophus Osborn (Mr. A. [Arthur] Tindell Hopwood), skull and feet of Diceratherium cooki, exhibited by the Department of Geology, British Museum (Natural History).
13. The Leakey-Harper drawing machine, exhibited by Louis Seymour Bazett Leakey.
14. Apparatus for observation of fine structure, x-ray stereograph of Professor Laby's design, spectrogram taken on a new quartz spectrograph, a large block of artificial sylvine, exhibited by Messrs Adam Hilger Limited.
15. A microvolt-hour meter (Mr. A. F. Dufton), exhibited by the Building Research Station.
16. Specimens illustrating special properties and applications of ferrous alloys, exhibited by Sir Robert Hadfield.
17. An early Italian globe - believed to be the only example known, exhibited by Robert Stewart Whipple.
18. Photographs of the new planet [Pluto], exhibited by the Radcliffe Observatory, Oxford.
19. Biochemistry of the lower fungi. Metabolism apparatus and metabolic products, exhibited by Harold Raistrick.
20. Virus disease in plants (Dr. J. [John] Henderson Smith), exhibited by the Rothamsted Experimental Station.
21. Infectious ectromelia. A hitherto undescribed virus disease of mice (demonstration by Captain S. R. [Stewart Rankin] Douglas and Dr. Wilson Smith of Miss J. Marchal's work), exhibited by the National Institute of Medical Research.
22. Parasitisation of the frog Phrynomerus microps by the Oligochaete worm Nais bauchiensis (Mr. H. W. [Hampton Wildman] Parker and Lieutenant-Colonel J. [John] Stephenson), model (x2) of Bathothauma lyromma Chun., a remarkable pelagic cephalopod (Mr. G. C. [Guy Cole] Robson), exhibited by the Department of Zoology, British Museum (Natural History).
Ground Floor (Corridor):
23. A suggested method for examining long cylinders such as gun tubes of gas cylinders for flaws visually by means of x-rays, x-ray spectra showing variations in orientation in copper crushers, exhibited by the Research Department, Woolwich.
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