Eight lectures on the signs Eight lectures on the signs of life from their electrical aspect eightlecturesons00wall Year: 1903 32 THE SIGNS OF LIFE [LECT. coats. A fresh eyeball prepared with such care as to give the typical positive response of the first type can at once be made r\ \\ •0 FlG. 15.—Diagram to illustrate the effect upon a galvanometer (broken line) of a simultaneous larger positive current and smaller negative current, the latter commencing and ending more rapidly. FlG. 15.—Retinal response of the second stage, illustrating the double effect. to give the negative response of
Eight lectures on the signs Eight lectures on the signs of life from their electrical aspect eightlecturesons00wall Year: 1903 32 THE SIGNS OF LIFE [LECT. coats. A fresh eyeball prepared with such care as to give the typical positive response of the first type can at once be made r\ \\ •0 FlG. 15.—Diagram to illustrate the effect upon a galvanometer (broken line) of a simultaneous larger positive current and smaller negative current, the latter commencing and ending more rapidly. FlG. 15.—Retinal response of the second stage, illustrating the double effect. to give the negative response of the third type by gentle massage by steady moderate compression, and in the latter case it is or
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