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Page 535
The same kind of apparatus is ply of two very fine bright yellow lines placed used in this investigation which Fraunhofer close together , all the rest of the field being and Kirchhoff applied to the investigation perfectly dark .
The same kind of apparatus is ply of two very fine bright yellow lines placed used in this investigation which Fraunhofer close together , all the rest of the field being and Kirchhoff applied to the investigation perfectly dark .
Page 540
But it is not of a large number of Fraunhofer's lines exeasy to understand how our atmosphere can plained , it seemed reasonable to suppose that contain such a quantity of iron vapor as other terrestrial bodies occur there , and would ...
But it is not of a large number of Fraunhofer's lines exeasy to understand how our atmosphere can plained , it seemed reasonable to suppose that contain such a quantity of iron vapor as other terrestrial bodies occur there , and would ...
Page 541
a а phere , but only in small quantities ; theory of vegetable nutrition now required no brightest of the lines of these metals cor- further proof , but must at once be adopted respond to distinct lines in the solar spec- by the ...
a а phere , but only in small quantities ; theory of vegetable nutrition now required no brightest of the lines of these metals cor- further proof , but must at once be adopted respond to distinct lines in the solar spec- by the ...
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