Horary quadrant by Henry Sutton
1658
Mercury bath thermometer
Glass Baume hydrometer
Glass Baume hydrometer
Hydrometer, glass and metal
1801-1900
Urinometer with test tube in cylindrical cardboard case
1830-1900
Clinical centigrade thermometer
1801-1900
Clinical thermometer
Thermometer, Forbes, bath
1801-1900
Twaddle's glass hydrometer
Mercury bath thermometer
1870-1901
Hydrometer made by Tissier, French, 1830-1920
1830-1920
Hydrometer, glass and metal
1801-1900
Glass hydrometer with mercury
Glass hydrometer with mercury, in cardboard case
Hydrometer, cased
Glass hydrometer in cardboard case, German
Twaddle hydrometer
1850-1950
Hydrometer, Baume, glass
1801-1900
Self registering
1801-1900
Glass and mercury hydrometer
1830-1920
Hydrometer, glass and metal
1801-1900
Fahrenheit dairy thermometer
1891