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