Description | Brief listing of exhibits and exhibitors at the Royal Society's twice-yearly displays at Burlington House, London, with occasional descriptive text. Arranged by rooms. Rooms 1-5.
Room 1: Schuster's experiments showing the force discovered by William Crookes reacts on the vessel containing the vacuum, an experiment showing radiation plays no part in the force, an instrument showing the force acts perpendicularly to the hot surface and a photometer to measure the heating effect of light, exhibited by Osborne Reynolds and Arthur Schuster; four rheotomes, exhibited by Alfred Apps.
Room 2: radiometers and a torsion balance, exhibited by William Crookes; Crooks radiometers, exhibited by James Joseph Hicks.
Room 3: photographs of Colorado and New Mexico USA, including Aztec ruins and Native Americans, exhibited by William Blackmore; fossil elephant bones found near London, exhibited by Professor James Tennant; arrangement for mounting objects on the same microscope slide for classification, exhibited by James Smith.
Room 4: new method of measuring the position of absorption bands in spectra, specimens and drawings of pigments from human hair, exhibited by Henry Clifton Sorby; new form of wave apparatus, exhibited by Mr. C. J. Woodward; micro-geometric pen and medical battery, exhibited by Tisley and Spiller; improved sounding and pocket sextants, exhibited by Captain Davis.
Room 5 (Principal Library): bathometer and attraction meter, exhibited by Charles William Siemens; Nicols prisms, largest yet made, exhibited by William Spottiswoode; infusions exposed to self-cleaned air, exhibited by John Tyndall; 8 ½ inch telescope, spectroscope, tube-holder for Plucker's Tubes, rotating metal-holder, Stephenson's binocular microscope, micro-spectroscope, portable microscope, lecturer's lantern and electric lamp, and radiometers, exhibited by John Browning; Bagot's patent safety indicator for excess heat or pressure, made by Alfred Apps, exhibited by Mr. Alan Charles Bagot; W. H. Roberts' course finder for mariners, exhibited by Alfred Apps; chronobarometer and small intensity battery, exhibited by Mr. William Ford Stanley; Navicula rhomboids viewed with a ¼ inch immersion lens by Robert B. Tolles of Boston, USA, exhibited by John Mayall junior; new shipwreck light and mechanical fog alarms, exhibited by Mr. N. J. Holmes; Edison's electric pen, exhibited by Mr. Thomas D. Clare; heliostat, exhibited by Conrad William Cooke; polar-clock gyroscope, exhibited from the Wheatstone Collection of Physical Apparatus, King's College; photographs of Burnham Beeches enlarged in permanent pigments, exhibited by Vernon Heath; Dr. Thursfield's patent writing frame for the blind, exhibited by Messrs. Elliott Brothers; watercolour drawings of views in Switzerland and the Alps, exhibited by George Barnard.
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