The New Student's Reference Work/Spectrum Analysis

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The New Student's Reference Work (1914) Spectrum Analysis

Speculum Metal→

See also Spectrum analysis on Wikipedia, and the disclaimer.

Spectrum Analysis, the act of ascertaining the character and composition of luminous bodies by causing a ray of light from the body to pass through a prism, each substance in the spectrum having its own characteristic system of lines—as in a star, a planet or any heavenly body in a state of incandescence or in metals submitted by the chemist to great heat.  See Spectroscopy.