Reference numberPC/3/2/19
TitleProgramme for a Royal Society conversazione
Date3 May 1899
DescriptionBrief listing of exhibits and exhibitors at the Royal Society's annual displays at Burlington House, London, with descriptive text. Arranged by rooms. Rooms 1-5 and Ground Floor. Commencing with a note of lantern slide displays taking place at a specific time during the evening.

Room 1 (Officers' Room):

1. A new influence machine, exhibited by Mr. W. R. Pidgeon.
2. Experiments with the Wehnelt electrolytic contact breaker, collection of vacuum tubes used for investigating the reflection of cathode rays, exhibited by Alan Archibald Campbell Swinton.

Room 2 (The Office):

3. Microscopic structure of heavy steel guns projectiles and warship propeller shafts, fatigue deterioration in steel rails, exhibited by Thomas Andrews.
4. Microscopic specimens showing effects of strain in metals, exhibited by James Alfred Ewing and Walter Rosenhain.
5. Enlarged photographs taken by Surgeon-Major [David] Bruce illustrating districts in South Africa affected by the Tsetse Fly disease, exhibited by the Tsetse Fly Committee of the Royal Society.

Room 3 (Reception Room):

6. Thin films used as mirrors, exhibited by Mr. A. [Arnulph?] Mallock.
7. Photographs of the Canadian Rocky Mountains, exhibited by John Norman Collie.
8. Model showing the twenty-seven lines on a cubic surface, exhibited by Henry Martyn Taylor.

Room 4 (Council Room):

9. Photomicrographic apparatus for high powers designed for the Jenner Institute of Preventive Medicine, exhibited by Joseph Edwin Barnard and Thomas Albert Briggs Carver.
10. The development of Filaria nocturna Manson, and of Proteosoma grassii Labbe (one of the parasites of malaria in birds) in the mosquito, exhibited by Patrick Manson and Ronald Ross.
11. Novel intersection patterns in compound vibration curves, a differential micrometer, exhibited by Joseph Goold.
12. Orchids of Guiana watercolour sketches, exhibited by Everard Ferdinand im Thurn.
13. Series of charts showing (a) the distribution of temperature and salinity over the surface of the North Atlantic during 1896 and 1897, (b) the mean temperatures of the surface waters of the sea around the British Isles and its relation to the mean temperature of the air, exhibited by Henry Newton Dickson.

Room 5 (Principal Library):

14. Photographs of the principal lines of gallium in arc and spark spectra compared with lines in the solar spectra, examples showing the application of photography to the minute chemical analysis of minerals and metallurgical products, exhibited by Walter Noel Hartley and James Johnston Dobbie.
15. Photographs of absorption spectra of organic compounds showing the method of investigating peculiar cases of isomerism called tuntomerism of desmotrophy, exhibited by Walter Noel Hartley and James Johnston Dobbie.
16. Three forms of eclipse spectroscope, exhibited by Charles P. Butler.
17. The phase-change associated with the reflection of light from a Fuchsine film, exhibited by Edwin Edser.
18. Experiments demonstrating multiple vision, exhibited by Shelford Bidwell.
19. Nernst electric lamps, exhibited by James Swinburne.
20. A selection of zoological specimens from Christmas Island (Indian Ocean) collected by C. W. [Charles William] Andrews.
21. Portion of skin of an extinct ground-sloth named Neomylodon listai by Ameghino from a cavern in southern Pategonia, plater reproduction of skeleton of Toxodon platensis an extinct ungulate quadruped from the Pampa formation, province of Buenos Aires, Argentina, reproduction of skulls, slab of translucent marble from La Toma, San Luis, Argentina, exhibited by Francisco Pascasio Moreno, Director of the La Plata Museum, Argentine Republic.
22. Examples of floating organisms from the surface and deep water of the Faroe Channel, exhibited by George Herbert Fowler.
23. Recording instruments, exhibited by Hugh Longbourne Callender.
24. New photographic researches on phosphorescent spectra, exhibited by Sir William Crookes.
25. Methods of feeding of marine animals illustrated by living and preserved examples, charts illustrating the distribution of the fauna and bottom deposits near the 30 fathom line from the Eddystone Grounds to Start Point, exhibited by the Marine Biological Association.
26. Michelson echelon grating spectroscope, exhibited by Adam Hilger.
27. Photographs of stellar spectra &c., taken at the Solar Physics Observatory, South Kensington, exhibited by Sir Joseph Norman Lockyer.
28. A model to illustrate how natural curliness of the hair is produced exhibited by Arthur Thomson.
29. Natural colour photographs of zoological and botanical subjects, mostly from life, taken and prepared by the exhibitor, exhibited by William Saville-Kent.
30. Actiniae and other marine animals killed by methanol and preserved in formalin in a fully expanded condition and the same mounted as transparent lantern slides, various marine animals preserved as museum specimens in glycerine, exhibityed by Henry Clifton Sorby.
31. Specimens showing that after hemisection of the spinal cord Clarke's column undergoes atrophy on the same side as the lesion, specimens showing that the fibres of the pyramidal tract terminate at the base of the posterior horn and in Clarke's column and not in the anterior horn, specimens showing that the fibres of the descending antero-lateral tract terminate in the anterior horn, exhibited by Edward Albert Schafer [later Sharpey-Schafer].
32. Paper models of the regular and semi-regular solids, exhibited by Mr. W. W. Taylor.
33. Decomposed flints from Southbourne, exhibited by Charles Carus-Wilson.

Ground Floor (Archives Room):

34. Recording pyrometers - platinum and thermo-electric, exhibited by Hugh Longbourne Callendar.
35. Oscillograph for tracing alternate-current wave-forms, exhibited by William Du Bois Duddell.

Secretaries' Room:

36. Lines of force in a magnetic field determined by the stream lines of a thin film of viscous fluid and also plotted from mathematical investigation, exhibited by Henry Selby Hele Shaw and Alfred Hay.
37. New thermo-electric combination giving a nearly constant electro-motive force through a wide range of changing temperature, exhibited by William Fletcher Barratt.

Meeting Room:

The following demonstrations by means of the electric lantern will take place at the times specified.

At 9.45 o'clock.
38. Lantern slides of Actiniae and other marine animals, exhibited by Henry Clifton Sorby.

At 10.15 o'clock.
39. Oscillographs applied to alternate-current wave-forms and to the Wehnelt interrupter, exhibited by William Du Bois Duddell.

At 10.45 o'clock.
40. The haunts and habits of British birds, exhibited by Richard Kearton.

Refreshments on the Ground Floor.
Physical descriptionOn paper
Access statusOpen
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