Whirling psychrometer for measuring humidity
1950-1953
Marine thermometer by Negretti and Zambra
1890
London & Birmingham Railway clock
1837
Earth thermometer with bent stem, c. 1925.
1925
Alarm clock
1840-1900
Clinical thermometer
1851-1900
Twaddle Hydrometers
1950-1970
De Luc whalebone hygrometer by Hausmann, 1781.
1781
Hydrometer marked O or W at top
Daniell hygrometer
1822
Hicks patent mercurial minimum thermometer with brass sliding scale
1861
Assmann psychrometer by C. F. Casella
1919
Lowne patent sympiezometer
1875
Assmann psychrometer
1922
Mercury-in-glass thermometer in sturdy brass surround
1820-1850
Solar maximum thermometer by Negretti & Zambra
1885
Wet bulb thermometer for ballooning
1880
Angstrom pyrheliometer
1914
Mercury - in - glass thermometer
1915-1925
Balfour-Stewart experimental mercury thermometer
1856
Original Gondola used in Professor Piccard's Second Ascent
Thermometer used by Thomas Hancock in his vulcanisation of rubber experiments
1840
Barometer by Daniel Quare c1690
circa 1700
Tubes for the whirling table
1753
Clinical Thermometer by Alexander Wilson, 1735-1745
1735-1745
Mercury in glass thermometer
1780-1840
Bent clinical thermometer
1820-1880
Clinical thermometer
Marks skin thermometer made by G. H. Zeal
Gilt customs and excise standard no 1 (Sikes) hydrometer by J J Hicks
1870-1930
Glass 'Technico' hydrometer
1860-1980
Glass 'diabetes' hydrometer by unknown maker
1870-1940
Glass 'Technico' hydrometer. 184mm long. Range 1.850 - 1.900. Mercury weight and paper scale. In black cardboard tube
1930-1980
Glass 'Technico' specific gravity hydrometer
1930-1980
Glass specific gravity hydrometer marked Gallenkamp
1930-1980
Glass 'Technico' specific gravity hydrometer
1930-1980
Glass 'Technico' specific gravity hydrometer
1930-1980
Glass hydrometer marked Gallenkamp and marked 'Spec. Gew.'
1900-1940
Glass hydrometer by unknown (probably German) maker
1870-1940
Glass hydrometer by unknown maker
1860-1980
Glass hydrometer by J Hicks
1880-1940
3 diabetes hydrometers
1871-1930
Glass hydrometer by unknown maker
1860-1980
Glass Gerber hydrometer
1900-1960
Glass specific gravity hydrometer marked Townson & Mercer
1900-1960
Mercury-in-glass thermometer in cardboard case measuring in the range -20 to 360 degrees Centigrade
1850-1924
Walferdin maximum thermometer, by Stock á Paris
1800-1899
Mercury-in-glass thermometer mounted on white tile (broken) and wood
1850-1924
Mercury-in-glass thermometer in metal case
1850-1924
Walferdin minimum thermometer
1800-1899