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Whirling psychrometer for measuring humidity

Whirling psychrometer for measuring humidity

1950-1953

Porcelain Bunsen burner, 1910-1913

Porcelain Bunsen burner, 1910-1913

1910-1913

Bottle of Benzopurpurin

Bottle of Benzopurpurin

Four Baume hydrometers in wooden box with thermometer

Four Baume hydrometers in wooden box with thermometer

Induction coil

Induction coil

1920

Dean Stark trap

Dean Stark trap

Wheel component of Schilowsky demonstration gyrostat

Wheel component of Schilowsky demonstration gyrostat

1913

Schilowsky demonstration gyrostat

Schilowsky demonstration gyrostat

1913

Component of Schilowsky demonstration gyrostat

Component of Schilowsky demonstration gyrostat

1913

Demonstration astatic galvanometer by J. J. Griffin & Sons Ltd

Demonstration astatic galvanometer by J. J. Griffin & Sons Ltd

1898-1907

Glass Sikes' Hydrometer (c. 1830) by J GRIFFIN & CO.

Glass Sikes' Hydrometer (c. 1830) by J GRIFFIN & CO.

1830

Boy's Rainbow Cup, brass, iron and plastic, made by Griffin & Sons Ltd, London, 1850-1924 (Wellcome No. B1452 & A195653)

Boy's Rainbow Cup

1850-1924

Schilowsky demonstration gyrostat mounted in gimbles on a stand with trolley and weight accessories to demonstrate the use of gyroscopes in balancing mono rail systems; made by Griffin & Sons.

Schilowsky demonstration gyrostat

1913

Pipette, 25 mL graduated pipette, with divisions every O.1mL, made by John J Griffin & Co. Ltd, London, date unknown. Above the graduations the pipette is marked "ML 020°C B", the "Griffin" trade mark written within an oval shape and "BS700".

Graduated pipette

Velox exposure meter, made by John J. Griffin and ons Ltd. Based at 20-26 Sardinia Street, London, WC. 5-step wedge with tissue paper steps - none, one, two, three, four, thicknesses, increasing paper thickness. Numbered 1 1/2, 3, 6 and 9. In card frame with printed instruction on the surround

Velox exposure meter

1894-1904