Micro-electroscope complete with stand
1904
Cambridge Instrument Co. "Round Compensator", 1890
1890
Einthoven 6-string galvanometer
1918
Angstrom pyrheliometer
1914
Rocking microtome, Cambridge, England, 1885
1885
Portable electrocardiograph, Cambridge, England, 1946
1946
Reading microscope with slide
1880-1885
Glazebrook's Calorimeter, 1890
1890
Kidney oncometer, 1877-1879.
1877-1879
A stromuhr for measuring blood flow, 1880-1881.
1880-1895
Model showing motion of an earth particle during an earthquake
1889
Twilight and afterglow effects at Chelsea
1888
Electrocardiograph machine, about 1940
1935-1945
Callendar Electrical Temperature Indicator, 1894
1894
Measuring (travelling) microscope
1880-1900
Twilight and afterglow effects at Chelsea
1888
Caldwell automatic microtome, Cambridge, England, 1884
1884
Twilight and afterglow effects at Chelsea
1888
Twilight and afterglow effects at Chelsea
1888
Fitzgerald sine and tangent galvanometer
1887
Boy's Mechanical Equivalent of Heat Apparatus, 1884
1884
Cambridge recording sound ranging apparatus
1918
Boys' torsion balance and components
1889
"Broca" galvanometer with one pair of coils of above 50 ohms resistance
1906
Ewing duplex pendulum seismograph by Cambridge Scientific Instrument Co.
1886
Floating Zenith Telescope designed by Bryson Cookson
1900
Prof C.V. Boy's radiomicrometer
1889-1893
Circuit mirror and suspension for Boys radiomicrometer
1800-1899
Callendar & Griffiths self-testing resistance box
1899