Callendar and Griffiths bridge No.4317
1906-1907
Duddell's thermo-galvanometer
1900
Duddell thermo-galvanometer
1906
Duddell Thermo-galvanometer
1911
Duddell vibration galvanometer
1916
Model of Callendar's Sunshine Receiver, 19th Century
1895-1910
Rocking Microtome
1900
Sir W. Napier Shaw's original anemenoidograph
1918
Duddell's Patent thermo-ammeter
Boys' Radiomicrometer, 1887-1900
1887-1900
Twin-vibrator element for Duddell high frequency oscillograph
1900-1904
Wilson gold leaf electrometer
1912
Whipple Temperature Indicator, 1912-14
1912-1914
Duddell double permanent magnet oscillograph
1905
Double thread recorder No.29731
1916
Dolezalek quadrant electrometer
1913
Moving-coil galvanometer
1906
Electric Motor for Callendar's Mechanical Equivalent of Heat Apparatus, 1904
1904
Duddell single element portable field oscillograph
1903
Large Sliding Microtome
1910
Duddell double high-frequency oscillograph
1904
Field clinometer, British, 1915
1915
Mason tilting mirror
1916
Wilson expansion apparatus
1912-1913
Bridge for use with platinum thermometer
1904
Pivoted Coil Electrical Temperature Indicator, 1910-14
1910-1914
Platinum Electrical Resistance Thermometer, 1910-14
1910-1914
Cambridge optical pyrometer (polarizing type) with amyl acetate lamp,in box. Also a boxed galvanometer and a variable slide resistance
Insulating tripod stand by the Cambridge Scientific Instrument Co.
1905
Six geometric tripod stands
1900-1914
Callendar's apparatus for determining the mechanical equivalent of heat with glass thermometer
1904
Temperature indicator
1900-1928
Platinum resistance thermometer no.477 by the Cambridge Scientific Instrument Co. Ltd.
1900
Cambridge precision vernier potentiometer
Station barometer
1921
Pair of Darwin gimbal mirrors
1916
Callendar sunshine recorder
1914
Callendar's patent chart recorder
1897-1900
Strobometer or slip indicator by the Cambridge Scientific Instrument Co. Ltd.
1909
Fery radiation pyrometer outfit; Fery telescope with tripod stand
1910-1914
Oscillating mirror and shutter
1907
Oscillograph tracing desk (without lantern) by the Cambridge Scientific Instrument Co. Ltd.
1909
Apparatus to demonstrate the transmission of pressure in a liquid (a form of hydraulic press) no. 2289
1900-1920
Mirror galvanometer unit
1900
Cinematograph camera for use with oscillograph
1907
Platinum resistance thermometer no.1837 by the Cambridge Scientific Instrument Co. Ltd.
1902
Callender sunshine recorder by Cambridge Instruments
1913
Portable Magnetometer
1914
Electrical Pyrometer (Temperature Indicator), 1910-1914
1910-1914
C V Boys' radio-micrometer, with outer casing removed, 1907.
1907