. Eight lectures on the signs of life from their electrical aspect . O 5 |_ L5 L \L° L /5L \_20mins. Before Afber FlG. 20.—Frog's eyeball. Influence of tetanisation upon the normal retinal response to light. Ordinary arrangement of induction coil, fed by two Leclanche cells. Secondary coil at 9 centims. (5000 units on Berne scale). After tetanisation the positive response is considerably augmented, and falls during illumination. The terminal positive deflection at break of light is almost completely abolished. This marked augmentation of response as

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. Eight lectures on the signs of life from their electrical aspect . O 5 |_ L5 L \L° L /5L \_20mins. Before Afber FlG. 20.—Frog's eyeball. Influence of tetanisation upon the normal retinal response to light. Ordinary arrangement of induction coil, fed by two Leclanche cells. Secondary coil at 9 centims. (5000 units on Berne scale). After tetanisation the positive response is considerably augmented, and falls during illumination. The terminal positive deflection at break of light is almost completely abolished. This marked augmentation of response as to current may be due to augmentation ^{voltage or of conductivity,®? to both factors;

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Keywords: ., bookcentury1900, bookdecade1900, bookpublishernewyo, bookyear1903