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" It is clear that to register minute galvanometrical alterations, the only plan that could bo employed would be to photograph on a sensitive surface, covering a cylinder rapidly revolving on a horizontal axis, the alteration of position of the spot of... "
The Journal of Anatomy and Physiology - Page 256
1873
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The Chemical News and Journal of Physical Science, Volumes 29-30

1774 - 628 pages
...the action of light on the retina and optic nerve. We have, therefore, found it necessary to constuct a true graphical representation of the variations...photograph on a sensitive surface, covering a cylinder rapidlj' revolving on a horizontal axis, the alteration of position of the spot of light reflected...
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The Journal of the Royal institution of Great Britain. Notices of ..., Volume 7

Royal institution of Great Britain - 1875 - 584 pages
...a variable element in the case of tho action of light on the retina and optic nerve. They therefore found it necessary to construct a true graphical representation...galvanometrical alterations, the only plan that could bo employed would be to photograph on a sensitive surface, covering a cylinder rapidly revolving on...
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Notices of the Proceedings at the Meetings of the Members of the ..., Volume 7

Royal Institution of Great Britain - 1875 - 588 pages
...then-fore found it necessary to construct a true 1876.] Physiological Action of Light. 363 г opreeentation of the variations of the electro-motive force occasioned...and cessation of light. It is clear that to register minuto galvanometrical alterations, the only plan that could be employed would be to photograph on...
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Collected Papers of Sir James Dewar...

Sir James Dewar - 1927 - 714 pages
...intensity. XVI. MODES OF GRAPHIC REGISTRATION IN THESE EXPERIMENTS. During the course of our observations we have found it necessary to construct a true graphical...the electromotive force occasioned by the impact, duration, and removal of light. It is clear that to register minute galvanometrical alterations from...
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Notices of the Proceedings, Volume 7

Royal Institution of Great Britain - 1875 - 576 pages
...a variable element in the case of the action of light on the retina and optic nerve. They therefore found it necessary to construct a true graphical representation...galvanometrical alterations, the only plan that could bo employed would be to photograph on a sensitive surface, covering a cylinder rapidly revolving on...
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