Excerpt from An Introduction to the Study of Spectrum Analysis
In no science, perhaps, does the sober statement of the results which have been achieved appeal so strongly to the imaginationand make so evident the almost boundless powers of the mind of man. By means of its light alone to analyze the chemical nature of a far distant body; to be able to reason about its present state in relation to the past and future; to measure within an English mile or less per second the otherwise invisible motion which it may have towards or from us; to do more - to make even that which is darkness to our eyes light, and from vibrations which our organs of sight are powerless to perceive, to evolve a revelation in which we see mirrored some of the stages through which the stars may pass in their slow evolutional progress - surely the record of such achievements, however poor the form of words in which they may be described, is worthy to be regarded as the scientific epic Of the century.
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