21 spirit bubbles

Laboratory Medicine

1840-1920

Hydrometer, Sikes, brass

Clinical Diagnosis

Nine spirit bubbles or philosophical beads

Laboratory Medicine

1701-1800

Spirit bubbles

Laboratory Medicine

Glass hydrometer with mercury

Laboratory Medicine

Twaddle hydrometer

Laboratory Medicine

1850-1950

Spirit bubble

Laboratory Medicine

Glass Cartier hydrometer

Laboratory Medicine

Hydrometer and alcoholmeter

Laboratory Medicine

Hydrometer, Sikes, brass

Laboratory Medicine

1801-1900

Broken glass and mercury hydrometer

Laboratory Medicine

1830-1920

Hydrometer, by Dring and Fage

Laboratory Medicine

1801-1900

Spirit bubbles

Laboratory Medicine

1860-1920

Hydrometer, lead shot in glass

Laboratory Medicine

1861-1920

Hydrometer for use as diabetes-testing uriameter

Clinical Diagnosis

1945-1950

Hydrometer and thermometer, Baume

Laboratory Medicine

Clear glass hydrometer

Laboratory Medicine

1801-1900

Hydrometer and accessories in wooden case

Laboratory Medicine

2 hydrometers in case

Laboratory Medicine

1880-1935

Twaddle's glass hydrometer

Laboratory Medicine

Hydrometer, 1720-1980

Laboratory Medicine

1720-1820

Glass hydrometer in cylindrical cardboard tube

Laboratory Medicine

16 spirit bubbles in mahogany case

Laboratory Medicine

1830-1900

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

Laboratory Medicine

1801-1900

Alcoholometer by T. Duval

Laboratory Medicine

Alcohol hydrometer

Laboratory Medicine

1701-1800

Glass specific gravity bottle in iron container

Clinical Diagnosis

1890-1935

Hydrometer, Richardson, brass

Laboratory Medicine

1801-1900

Hydrometer, metal, in shaped wooden case

Laboratory Medicine

1830-1920

Hydrometer, Sikes, brass

Laboratory Medicine

Hydrometer, glass and metal

Laboratory Medicine

1801-1900

Hydrometer in case by F. Harris, London, British

Laboratory Medicine

Hydrometer, brass, in wooden case

Laboratory Medicine

1801-1895

Hydrometer, brass, in wooden case

Laboratory Medicine

1801-1900

Hydrometer, with wooden case

Laboratory Medicine

1830-1930

Glass hydrometer with mercury

Laboratory Medicine

1859-1872

Set of three spirit bubbles with thermometer

Laboratory Medicine

Hydrometer, brass, in wooden case

Laboratory Medicine

1801-1900

3 diabetes hydrometers

Laboratory Medicine

1871-1930

Hicks' milk tester

Veterinary Medicine

1871-1900

Two hygrometers in a wooden case

Laboratory Medicine

Glass Baume hydrometer

Laboratory Medicine

Glass Baume hydrometer

Laboratory Medicine

Glass hydrometer with mercury, in cardboard case

Laboratory Medicine

Hydrometer, cased

Laboratory Medicine

Hydrometer, glass, for diabetes

Clinical Diagnosis

Box containing 28 hollow glass bubbles

Laboratory Medicine

1820-1940

Twelve spirit bubbles in a wooden case

Laboratory Medicine

1701-1800

Spirit bottle

Laboratory Medicine

1830-1930

Spirit bubble

Laboratory Medicine

1840-1930