Cardiac catheter, plastic tube with stylet inserted, plus spare stylet, 1950 to 1970 Cardiac catheter 1950-1970
Electromagnetic machine in walnut(?) box, containing battery, induction coil and 2 electrodes, made by Legendre, Paris, French, 1880-1890 Electromagnetic machine in walnut(?) box, containi 1880-1890
Callendar sunshine recorder, 1900 type, by Cambridge Scientific Instrument Co., 1914. Callendar sunshine recorder 1914
Original Fleming diode, 60 S16, (RMW/A1A - McVitie Weston number), by The Edison and Swan Electric Light Company Limited, c.1904, invented by Sir (John) Ambrose Fleming and used by Fleming in October 1904. Fleming diode 1904
Cardiac catheter, for investigating heart shunts, plastic and metal, by U.S. Catheter and Instruments Corporation, New York, 1950 to 1970 Cardiac catheter, for investigating heart shunts 1950-1970
Melloni's apparatus by Elliott Bros., London, England, 1888. Comprising cast iron bed with three sliding uprights and one upright with radial arm carrying two sliding pillars and a counterweight, plus various accessory apparatus: Locatelli's lamp and reflector, spirit lamp with cover on sliding base, reflector with hook and platinum spiral for heat source, thermopile with double cone and with two caps, line thermopile, plain screen, hinged screen, screen with aperture disc, double screen, black mirror, Leslie's cube with holder, copper hood heat source, two plates of rock salt in glass container, glass cell, angled mica plates in fixed mount, angled mica plates in rotatable mount, mica plates fixed perpendicular to the radiation in rotatable mount, mica plates in frame for varying angle of incliation to the radiation, wooden clamp, and wooden table. Melloni's apparatus for demonstrating properties of infrared radiation 1888