Adam Hilger Ltd.
The Hilger Barfit wavelength spectrometer : with a complete range of co-ordinated accessories forming spectrometers, spectrographs, monochromators, spectorphotometers.
Spectrometers -- Catalogs.
Monochromator -- Catalogs.
Spectrograph -- Catalogs.
Spectrophotometer -- Catalogs.
Ultra-violet rays.
Infrared spectroscopy
Scientific apparatus and instruments -- Catalogs.
Wavelength spectrometer.