Apparatus for color-sense of the eccentric parts of retina, to be attached to Hering's foot-machine. After Hering, by Rothe, Prag
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Source
Anonymous.
1892.
Harvard Psychological Laboratory in Dane Hall: Interior of a Laboratory Room.
Photography
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Psychological Laboratory, Harvard University.
Cambridge (MA).
comment
See the <link ref="tec2990">same device</link> on another photograph from this set.VL Technology
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