| 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. Demonstration of part of the apparatus for determining length standards in terms of wave-lengths of light (Mr. J. E. [John Edward] Sears junior and Mr. H. [Henry] Barrell), exhibited by the National Physical Laboratory.
2. Some experiments in thermo-elasticity, exhibited by Ernest George Coker and Archibald Vivian Hill.
3. Original moving lens lightning camera, photographs obtained with revolving lens cameras, exhibited by Charles Vernon Boys.
4. The bed bug in the slums, exhibited by Patrick Alfred Buxton and Alfred Weston McKenny-Hughes.
Room 2 (Reception Room):
5. A self-recording apparatus for measuring changes in aperture of stomata of the leaf, exhibited by Frederick Gugenheim Gregory and Mr. H. L. Pearse.
6. Living Podogona from West Africa (Miss S. [Susan] Finnegan), exhibited by the Department of Zoology, British Museum (Natural History).
7. The value of the larvae of Coleoptera in classification (Dr. K. G. [Kenneth Gloyne] Blair and Mr. S. [Samarenda Nath] Maulik), exhibited by the Department of Entomology, British Museum (Natural History).
8. Fauna of the sea bottom, exhibited by the Marine Biological Association.
9. The Hilger vitameter A, the guild trichromatic colorimeter, the universal colour comparator, the blancometer, exhibited by Adan Hilger Limited.
Room 3:
10. The biological control of injurious insects and weeds, (Dr. W. R. [William Robin] Thompson, Mr. S. Garthside and Mr. J. E. Moss), exhibited by the Farnham House Laboratory, Imperial Institute of Entomology.
11. Pelargonium kewense and its reputed parents and offspring, exhibited by Arthur William Hill, the Director, Royal Botanic Gardens, Kew.
12. Evolution in budgerigar under domestication, exhibited by Reginald Crundall Punnett.
13. Investigations on the relation of insect activity in the field to climatic conditions (Mr. C. E. Williams, Chief Entomologist, and Mr. D. Morland, Apiarist), exhibited by the Entomological Department, Rothamsted Experimental Station.
14. The formation of artificial clouds, exhibited by Sir Gilbert Walker and Mr. A. Graham.
15. An apparatus to enable the deaf to hear by bone conduction, the effects of mechanical strain on the properties of magnetic materials, exhibited by the Director of Scientific Research, Admiralty.
Room 4 (Principal Library):
16. 'Pretious stones' from Sir Hans Sloane's collection (1753) (Dr. L. J. [Leonard James] Spencer), exhibited by the Department of Mineralogy, British Museum (Natural History).
17. A photoelectric method of measuring the cell space ration in woods (Mr. W. W. Barkas), exhibited by the Forest Products Research Laboratory.
18. Experiments on thixotropy, displacement of a chemical equilibrium by adsorption, exhibited by Herbert Freundlich.
19. Valve operated high frequency induction furnace suitable for laboratory work shown in operation melting steels and alloys, portrait gallery of 120 distinguished scientists connected more particularly with the development of metallurgy and engineering, these date from 1452 down the to present day.
20. Colour distribution from modern gas discharge lamps, exhibited by the British Thomson-Houston Company Limited.
21. Group of hybrid calceolarias in pots (Dr. E. J. Collins), fern sporangia with spermatozoids (Dr. I. [Irma] Anderson-Kotto and Miss A. E. Gairdner), division of the generative nucleus in Tulipa greigii (Miss M. B. [Margaret Blanche] Upcott), distorted Medelian ratios in maize (Dr. F. G. [Friedrich Gustav] Brieger), exhibited by the John Innes Horticultural Institution.
22. An analogy of the Aurora Borealis demonstrated by means of a cathode-ray tube (Mr. R. A. [Robert Alexander] Watson Watt), the cathode-ray tube as magnetic compass (Mr. R. A. Watson Watt, Mr. J. F. Herd and Mr. L. B. [Labouchere Hillyer] Bainbridge-Bell), exhibited by the National Physical Laboratory.
23. Simple apparatus for prolonged artificial respiration, exhibited by Robert William Paul.
24. The Phthalocynaines a new class of organic colouring matters, exhibited by Reginald Patrick Linstead.
25. Tests for analysing and measuring manual skill, exhibited by the National Institute of Industrial Psychology.
26. The tail and sensory canals of the Old Red Ostracoderm Pteraspis (Dr. E. I. White), exhibited by the Department of Geology, British Museum (Natural History).
27. Metropolitan-Vickers portable noise measuring apparatus, metallic coatings on glass and paper obtained by the condensation of metal evaporated in vacuo, exhibited by the Metropolitan Vickers Electrical Company.
28. The development of the automatic microtome, exhibited by the Department of Comparative Anatomy and Zoology, Cambridge, and the Cambridge Instrument Company Limited.
29. Silica-glass from the Libyan Desert (Dr. L. J. [Leonard James] Spencer), exhibited by the Department of Mineralogy, British Museum (Natural History).
30. The British Myrmecophiles (guests of British ants) (Mr. H. Donisthorpe), exhibited by the Department of Entomology, British Museum (Natural History).
31. The earliest known dated optical instrument in the world. A telescope of 1646 by Maria de Rheita, exhibited by George Hugh Gabb.
32. An analysis of the developmental potencies of various regions of the undifferentiated mandible of the embryonic fowl (Dr. W. Jacobson and Dr. H. B. [Honor Bridget] Fell), the effect upon ossification in vitro of vitamin D-deficient culture medium to which Ca and P has been added (Miss C. F. [Catherine Felicitee] Fischmann), effects of gamma radiation on the chick embryo (Dr. A. F. W. Hughes, Mr. C. W. Wilson and Dr. A. Glucksmann), exhibited by the Strangeways Research Laboratory.
33. Silicosis, exhibited by William R. Jones.
34. Thick sections of animal tissues, exhibited by Herbert Graham Cannon.
35. Some adaptions of dipterous larvae to life in rapid streams (Dr. F. W. [Frederick Wallace] Edwards and Miss D. [Daphne] Aubertin, exhibited by the Department of Entomology, British Museum (Natural History).
36. X-ray photographs of crystallised pepsin, exhibited by John Desmond Bernal.
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