. Eight lectures on the signs of life from their electrical aspect . CONTENTS LECTURE I PAOJ Aim and Purpose of the Lectures—The Subject-matter of Physiology -The Signs of Life ; The Sign of a Sign is a Sign of the Thing itself—Two Familiar Instances ; on Muscle and on Nerve—A Proof of Chemical Change in Seeds—An Experiment on Muscle —Retinal Currents—Vegetable Currents—Terminology—Solu- tion-pressure—Summary ...... i LECTURE II The Prospect — Demonstration of Retinal Currents — The Initial Current—The Principal Fact ; Subordinate Features — Three Types of Response—Two Opposed Processes—Effect
. Eight lectures on the signs of life from their electrical aspect . CONTENTS LECTURE I PAOJ Aim and Purpose of the Lectures—The Subject-matter of Physiology -The Signs of Life ; The Sign of a Sign is a Sign of the Thing itself—Two Familiar Instances ; on Muscle and on Nerve—A Proof of Chemical Change in Seeds—An Experiment on Muscle —Retinal Currents—Vegetable Currents—Terminology—Solu- tion-pressure—Summary ...... i LECTURE II The Prospect — Demonstration of Retinal Currents — The Initial Current—The Principal Fact ; Subordinate Features — Three Types of Response—Two Opposed Processes—Effects of Com- plementary Colours—Cause : Effect—Anaesthetics—Retino-motor Effects 21 LECTURE III Plan of this Lecture—Electrical Excitation of a Frog's Eyeball- Modification of the Response to Light subsequent to Tetanisa- tion, and during Tetanisation—Effects and After-effects of Single Shocks —" Blaze-currents "- - Polarisation Currents — Electrocu- tion—-Three Types of Blaze-currents—The Effect is greater than its Cause—Influence of a Galvanic Current—Some Questions— The Crystalline Lens . . . 41 LECTURE IV Skin-currents (of the Frog)—The Normal Current is " Ingoing"- -The Response to Indirect Excitation is Outgoing, Mixed, or Ingoing —The Latent Period is Two Seconds — Fatigue — Atropine — Mercuric Chloride—The Response to Direct Excitation is Out- going—Summation—Effects of Tetanisation—Localisation of the Response by the ABC Method—Terminology . -59 44194
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Keywords: ., bookcentury1900, bookdecade1900, bookpublishernewyo, bookyear1903
