21 spirit bubbles, in circular case

Laboratory Medicine

1840-1920

Hydrometer, Sikes, brass, by Joseph Long of London

Clinical Diagnosis

Nine spirit bubbles or philosophical beads, made b

Laboratory Medicine

1701-1800

Glass Cartier hydrometer

Laboratory Medicine

Hydrometer, in case, French(?), 1801-1900

Laboratory Medicine

1801-1900

Spirit bubbles, set of 19 hydrostatic spirit balls

Laboratory Medicine

Hydrometer, Sikes, brass, in wooden case, with the

Laboratory Medicine

1801-1900

Sikes alcoholometer, with case, English(?), 1850-1

Laboratory Medicine

Twaddle's glass hydrometer

Laboratory Medicine

Hydrometer and accessories in wooden case, by C. K

Laboratory Medicine

2 hydrometers in case, early C20, German, Twaddell

Laboratory Medicine

1880-1935

Hydrometer and alcoholmeter, Gay-Lussac in wooden

Laboratory Medicine

Alcoholometer by T. Duval, 23 Me Ste Croix de la B

Laboratory Medicine

Glass hydrometer in cylindrical cardboard tube

Laboratory Medicine

Clear glass hydrometer, tubular with spherical bul

Laboratory Medicine

1801-1900

Alcohol hydrometer, with leather case, by Bougleux

Laboratory Medicine

1701-1800

Hydrometer, 1720-1980

Laboratory Medicine

1720-1820

16 spirit bubbles in mahogany case, made by B. Cor

Laboratory Medicine

1830-1900

Glass hydrometer with mercury, in cardboard case,

Laboratory Medicine

1859-1872

Hydrometer, brass, in wooden case, by Dring and Fa

Laboratory Medicine

1801-1900

Hydrometer, Sikes, brass, in wooden case, with the

Laboratory Medicine

1801-1900

Hydrometer in case by F. Harris, London, British

Laboratory Medicine

Hydrometer, with wooden case, made by L Casella, E

Laboratory Medicine

1830-1930

Set of three spirit bubbles with thermometer, in c

Laboratory Medicine

Hydrometer, glass and metal, in cardboard case, Eu

Laboratory Medicine

1801-1900

Hydrometer and thermometer, Baume

Laboratory Medicine

Hydrometer, metal, in shaped wooden case, English(

Laboratory Medicine

1830-1920

Hydrometer, Richardson, brass, in wooden case, by

Laboratory Medicine

1801-1900

Glass specific gravity bottle in iron container, o

Clinical Diagnosis

1890-1935

Glass Baume hydrometer

Laboratory Medicine

Glass Baume hydrometer

Laboratory Medicine

Glass hydrometer with mercury, in cardboard case

Laboratory Medicine

Hydrometer, cased

Laboratory Medicine

Two hygrometers in a wooden case, made and patente

Laboratory Medicine

Box containing 28 hollow glass bubbles, some calib

Laboratory Medicine

1820-1940

3 diabetes hydrometers, glass and mercury, in tin

Laboratory Medicine

1871-1930

Hydrometer, glass, for diabetes, in leather case,

Clinical Diagnosis

Hydrometer for use as diabetes-testing uriameter,

Clinical Diagnosis

1930-1960

Hicks' milk tester, glass, with three coloured bal

Veterinary Medicine

1871-1900

Hydrometer, Sikes, brass, in wooden case, with the

Laboratory Medicine

1801-1900

Hydrometer, Sikes, brass, in wooden case, with the

Laboratory Medicine

1801-1900

Hydrometer, by Dring and Fage, London, cuckoo slid

Laboratory Medicine

1801-1900

Brass hydrometer, bulb only, European(?), 1830-192

Laboratory Medicine

1830-1920

Twelve spirit bubbles in a wooden case, made, or s

Laboratory Medicine

1701-1800

Broken glass and mercury hydrometer, stem missing,

Laboratory Medicine

1830-1920

Spirit bottle, glass and mercury, English(?), 1830

Laboratory Medicine

1830-1930

Hydrometer, metal, in shaped wooden case, Swiss, 1

Laboratory Medicine

1801-1900

Hydrometer, cased, by Brewer Freres, 43 rue St. An

Laboratory Medicine

Glass hydrometer in case

Laboratory Medicine

Hydrometer, silver, in shaped wooden case

Laboratory Medicine