Spectrum Analysis

Spectrum Analysis, name given to the method of determining the composition of a body by means of the spectrum of light which it gives forth or passes through it, founded on the principle that a substance powerfully absorbs exactly the rays it radiates, and every substance has its own absorbing powers; or it may be defined the method of distinguishing different kinds of matter by their properties in relation to light.

Definition taken from The Nuttall Encyclopædia, edited by the Reverend James Wood (1907)

Spectrum * Speculative, The
[wait for the fun]
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Spanheim, Friedrich
Spanish Main
Sparks, James
Spasmodic School
Specific Gravity
Spectrum Analysis
Speculative, The
Spedding, James
Speke, John Banning
Spence, Joseph
Spencer, Herbert
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Spener, Philip Jacob
Spenser, Edmund