A table of the atomic refractions and dispersions of the principal elements is here given: Dispersion and Composition.-In the preceding section we have seen that substances possess a definite molecular (or atomic) refraction for light of particular wave-length; the difference between the refractions for any two rays is known as the molecular (or atomic) dispersion. [Please select]
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The final move of this profound, though very daring, plan was to take advantage of the Federal distractions and consequent dispersions so as to effect a junction on the field of battle against a conquerable force. [Please select]
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