| 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. 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'. The Society's coat of arms is printed in red on the title page.
Room 1:
1. Apparatus for the visual observation of airscrew flutter (Dr. W. J. [William Jolly] Duncan and Mr. D. L. Ellis), exhibited by the National Physical Laboratory.
2. Examples of convergent evolution in mammals (Captain Guy Dollman), exhibited by the Department of Zoology, British Museum (Natural History).
3. Decay of timber in buildings, exhibited by the Forest Products Research Laboratory.
Room 2 (Reception Room):
4. Incompatibility in fruit trees (Mr. M. B. [Morley Benjamin] Crane), species hybrids in Calceolaria (Dr. E. J. Collins), exhibited by the John Ines Horticultural Institution.
5. Illustrating certain corrosion phenomena, a method of automatic temperature control for electric heating furnaces for 'creep' testing apparatus showing control within + or - 0.05 degrees centigrade, close 'fits' of plug and ring, exhibited by the Brown-Firth Research Laboratories.
6. Reversion of cultivated land to natural vegetation (Dr. Winifred E. Brenchley and Miss Katherine Warington), exhibited by the Rothamsted Experimental Station.
Room 3:
7. Recent advances in low voltage cathode ray oscillograph tubes and equipment and of vacuum tube oscillators, exhibited by Standard Telephone and Cables Limited.
8. Two experiments illustrating methods of investigating the ionosphere (Radio Department), exhibited by the National Physical Laboratory.
9. Protective inoculation against a virus disease (Dr. Redcliffe S. Salaman), exhibited by the Potato Virus Research Station.
10. Recent developments in infra-red photography, exhibited by Ilford Limited.
11. South African aquatic Oxalis, Streptocarpus and Nymphaea, exhibited by Arthur William Hill, the Director, Royal Botanic Gardens, Kew.
Room 4 (Principal Library):
12. Some photographs of the tracks of penetrating radiation, exhibited by Patrick Maynard Stuart Blackett.
13. Some positive electron tracks using a neutron source, exhibited by James Chadwick, Patrick Maynard Stuart Blackett and Giuseppe Paolo Stanislao Occhialini.
14. Ripple and striated discharges in rare gases, exhibited by the Research Laboratories of the General Electric Company.
15. Bubbling valve, exhibited by the Metropolitan-Vickers Electrical Company.
16. A test for ability to discriminate fine differences of colour shade, exhibited by the National Institute of Industrial Psychology.
17. A simple automatic alpha-particle counter, exhibited by Charles Eryl Wynn-Williams.
18. Insect distribution, exhibited by Alister Clavering Hardy and Mr. P. S. Milne.
19. 'The Royal Society Thermometer' the earliest standard thermometer in England, exhibited by George Hugh Gabb.
20. Automatic measurement and counting of time intervals (Mr. A. Felton), exhibited by the National Physical Laboratory.
21. The Louvre strain viewer, a new series of fine adjustments, exhibited by Messrs. Adam Hilger Limited.
22. Response to light in marine plankton - illustrated with living animals, exhibited by the Marine Biological Association.
23. Bending of marble, exhibited by Robert John Strutt, 4th Baron Rayleigh.
24. Specimens of metallurgical interest, mainly ferrous, including a large series of tensile and other tests at the temperature of liquid hydrogen (-252.8 degrees centigrade), exhibited by Sir Robert Hadfield.
25. Single crystal of meteoric iron (Dr. L. J. [Leonard James] Spencer), spheres of nickel-iron in silica-glass from the meteoric craters at Wabar, Arabia, exhibited by the Department of Mineralogy, British Museum (Natural History).
26. Early prehistoric man in East Africa (the Kanam mandible and Kanjera skulls), exhibited by Louis Seymour Bazett Leakey.
27. Series of dated European astrolabes, exhibited by Robert William Theodore Gunther.
28. A dodecapodous pycnogonid (Dr. W. T. [William Thomas] Calman), exhibited by the Department of Zoology, British Museum (Natural History).
29. A tubular structure in a modified antennal segment of the males of some Chrysomelid beetles, exhibited by Samarendra Nath Maulik.
30. Groups of insects illustrating mimicry, exhibited by Edward Bagnall Poulton and Geoffrey Douglas Hale Carpenter.
31. Some old scientific instruments, some old scientific books exhibited by Robert Stewart Whipple.
32. The ear bones of the goldfish, exhibited by Ernest William MacBride and Mr. J. M. Watson.
33. Induced colour-change in Salamander larvae, exhibited by Miss Dorothy Ena Sladden.
34. New studies on varicella. Demonstration of the elementary bodies in varicella and their agglutination in pure suspension by the serum of chickenpox patients, exhibited by Cleve Russell Amies, the Lister Institute, London.
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