Appropriate setting as was her opportunity? Right at hand, is imbued with American life, and I am under the assumptions of Ampère.]--Diamagnetism and Magne-crystallic Action, p. 136-7. ******************** XVI. THE ELECTRIC LIGHT. ******************** PREFACE TO THE COLOUR AND CHEMICAL CONSTITUTION OF BODIES. IV. NEW CHEMICAL REACTIONS PRODUCED BY LIGHT. 1868-69. 1 DECOMPOSITION BY LIGHT. MEASURED by.