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Sturgeon mercury break

1886

Bertin commutator

1886

Hempel pipette for solid substances

Gold leaf electrometer with sliding condenser

1886

Pensky-Martens flash point apparatus

Portable incubator and stand by Townson and Mercer

Savart apparatus with wheel and indicator

1885

Glass specific gravity hydrometer marked Townson & Mercer

1900-1960

Solar radiation thermometer, 1849.

1849

Gas burner by Townson and Mercer

1910

Double Gyroscope Apparatus, with components

1890

Model of eye with spectacle lenses

1900-1905

Plug resistance box by Townson and Mercer

1900-1980

Simple copper voltameter on mahogany base

1900-1920

Redwood viscometer made by Townson and Mercer

Karl Fischer apparatus by Townson and Mercer

1951-1960

Deflection magnetometer compass

1900-1939

Tangent galvanometer with mahogany base and former and three coils

1900-1960

Volta's condensing electroscope

1897-1910

Glass hydrometer by Townson & Mercer

1870-1910

Counter-current ("Liebig") condenser

Gas regulator: Tollen's form

1886

Gas regulator: Lothar Meyer's

1886

Battery of four Leyden jars

1897-1918

Teclu Type Gas Burner, 1900-1905

1900-1905

Hempel's gas-pipette fitted with burette and pressure tube.

Hempel's gas-pipette

Sacker viscometer for testing lubricating oil.

Sacker viscometer for testing lubricating oil, with stand and components

circa 1885

Kjeldahl's apparatus for determination of nitrogen content

Kjeldahl's apparatus for determination of nitrogen content

1912

Boiler, for reaction vessels, with stoppers, by Townson and Mercer, 89 Bishopsgate Street, London, England, 1851-1900.

Boiler, for reaction vessels

1851-1900

Hand centrifuge by Townson and Mercer, London, 1912.

Hand centrifuge, 1912.

1912

Apparatus for demonstrating Lissajou's figures by means of two vibrating metal arms carrying mirrors, by Townson and Mercer, 34 Camomile St., London, EC3 (Incomplete: one vibrator missing)

Apparatus for demonstrating Lissajou's figures by means of two vibrating metal arms carrying mirrors

1918-1949

Stopclock with resettable minute and second hands, by Townson and Mercer Ltd., London

Stopclock with resettable minute and second hands

1900-1980

Strohlein apparatus for rapid determination of carbon in iron and steel by volumetric analysis by Townson and Mercer, London, 1950-1960

Strohlein apparatus for rapid determination of carbon in iron and steel

1950-1960

Abel flashpoint apparatus by Townson and Mercer Ltd., with two thermometers, in box, serial no. 2320, calibration stamps 1927, 1943, c. 1900

Abel flashpoint apparatus, 1900

circa 1900

Dr. Thorpe's revenue still apparatus, consisting of double retort stand, glass tube still, two flasks and bunsen burner by Townson & Mercer.

Dr. Thorpe's revenue still apparatus and components

Glass hydrometer marked Townson & Mercer. Range 0.700 - 1.000. 293mm long. Mercury weight and paper scale, 1900 - 1960. No case.

Glass hydrometer marked Townson & Mercer. Range 0.700 - 1.000. 293mm long. Mercury weight and paper scale

1900-1960

Varley's carbonised cloth rheostat by Townson & Mercer, consisting of a number of cloth discs which can be compressed by a screw

Varley's carbonised cloth rheostat by Townson & Mercer

1890-1939

Glass specific gravity hydrometer marked Townson & Mercer. Range 1.500 - 2.000. Mercury weight and paper scale. In cardboard tube, cap missing, 1900 - 1960.

Glass specific gravity hydrometer marked Townson & Mercer

1900-1960

Fractional distilling tube, Glinsky's form

Fractional distilling tube

Soxhlet's extraction apparatus.

Soxhlet's extraction apparatus and components

1885

Hempel explosion pipette for use with water, with burette and pressure tube, (added in 1904)

Hempel explosion pipette for use with water

Hempel explosion pipette, cat. no.1931

Hempel explosion pipette, cat. no.1931

Bertin commutator by Townson and Mercer, 34 Camomile Street, London EC.

Bertin commutator by Townson and Mercer

1897-1918

Argand type gas burner by Townson and Mercer, London, early 20th century.

Argand Gas Burner, 1901-1914

1901-1914

Glass Twaddell No 5 hydrometer marked Townson & Mercer. 218mm long. Range 102 - 138. Mercury weight and paper scale. In black cardboard tube; top has end missing, 1900 - 1960. Hydrometer Index 264.

Glass Twaddell No 5 hydrometer marked Townson & Mercer

1900-1960