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Large goniometer and spectrometer with heating apparatus and two thermometers

Large goniometer and spectrometer with heating apparatus and two thermometers

1880-1885
Spectrometer, fitted with replica of Rowlands grating

Spectrometer, fitted with replica of Rowlands grating

1905-1907
Dual vision spectrometer on metal stand

Dual vision spectrometer on metal stand

1850-1924
Telescope for attaching to rotating arm of large spectrometer by E.R. Watts and son (1921)

Telescope for attaching to rotating arm of large spectrometer by E.R. Watts and son (1921)

Large goniometer and spectrometer by R. Fuess (unsigned)

Large goniometer and spectrometer by R. Fuess (unsigned)

1880-1885
Base and turntable of large spectrometer by E.R.Watts and Son (1921)

Base and turntable of large spectrometer by E.R.Watts and Son (1921)

Fixed telescope for fitting to base of large spectrometer by E.R.Watts and Son (1921)

Fixed telescope for fitting to base of large spectrometer by E.R.Watts and Son (1921)

Collimator of large spectrometer by E.R. Watts and Son c 1921

Collimator of large spectrometer by E.R. Watts and Son c 1921

Three-prism spectrometer by John Browning, London, in fitted wooden case, marked "Brit. Mus. (NH)/Min: Dep:/No.1

Three-prism spectrometer by John Browning

1870-1940
Hilger-Watts spectrometer plus power pack, instructions and accessories (sample holders, quartz)

Hilger-Watts spectrometer plus power pack

Echelon spectroscope, with wave length drum (Prism and Echelon grating chipped) by Adam Hilger Ltd., London, England, 1905, comprised of two units: constant deviation spectrometer and echelon grating.

Echelon spectroscope

1905
Large spectrometer made by E.R. Watts and Son (1921), dismantled into four parts as follows:

Large spectrometer made by E.R. Watts and Son (1921)

Hilger-Watts spectrometer. Serial number(?) 56336.

Hilger-Watts spectrometer

Spectrometer, fitted with replica of Rowlands grating (has fitted leather case), by W. Watson and Sons, London, England, 1905-7. Fitted with 5-inch circle, reading by Vernier to minutes, rack focus to telescope etc.

Spectrometer, fitted with replica of Rowlands grating (has fitted leather case)

1905-1907
Absorption spectrometer by Schmidt & Haensch, Berlin, owned by Dr. A. Bruce, Edinburgh, 1890-1910

Absorption spectrometer by Schmidt & Haensch

1890-1910