Eight lectures on the signs Eight lectures on the signs of life from their electrical aspect eightlectureson00wall Year: 1903 30 THE SIGNS OF LIFE Dark. Light:. [lect. First or normal type. ''^Ol Second or transitional q type. Third or reversed type. â 0003 Dark. I mm. am ins Fig. 13.âFroy's eyeball. The three types of its response to light, as described in the text.

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