Lectures on light, delivered in the United States in 1872-'73; with an appendix (1873)
Tyndall, John, 1820-1893 · New York, Appleton · leaf 164
, a dark Fraunhofers band in the placeof the yellow. (A Bunsens flame contained withinthe chimney C is placed in front of the lamp L. Thetin spoon with its pellet of sodium is plunged into theflame. Vivid combustion soon sets in; and, when itdoes, the yellow of the spectrum, at D, is furrowed by… … T -D Mentally, as well as physically, every age of theworld is the outgrowth and offspring of all precedingages. Science proves itself to be a genuine productof Nature by growing according to this law. We haveno solution of continuity here. Every great discoveryhas been duly prepared for in two…
Optics
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