Mounted Spectroscope, Observe The Visible Line Spectra Of Metals And Gases As Well As The Absorption Spectra Of Solutions And Gases, Each

Details:

Replica diffraction grating instrument with a scale shows approximate wavelengths in nanometersidentify elements when vaporized by heatidentify colored solutions which produce absorption spectraview prominent fraunhofer linesone-piece aluminum casting serves as the body of the spectroscopediffraction grating replica of 15,000 lines per inchuse any convenient light for illuminatio