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S. D. Humphrey
A Practical Manual of the Collodion Process
Giving in Detail a Method For Producing Positive and Negative Pictures on Glass and Paper
Published by Good Press, 2021
EAN 4066338057853
Table of Contents
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CHAPTER I.
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PART I
CHAPTER I.
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LIGHT—SOLAR SPECTRUM—DECOMPOSITION OF LIGHT—LIGHT, HEAT AND ACTINISM—BLUE PAPER AND COLOR FOR THE WALLS OF THE OPERATING ROOM—PROPORTIONS OF LIGHT, HEAT AND ACTINISM, COMPOSING A SUN-BEAM—REFRACTION—REFLECTION—LENSES—COPYING—SPHERICAL ABERRATION—CHROMATIC ABERRATION.
It has been well observed by an able writer, that it is Impossible to trace the path of a sunbeam through our atmosphere without feeling a desire to know its nature, by what power it traverses the immensity of space, and the Various modifications it undergoes at the surfaces and the interior of terrestrial substances.