Lxxxiii. P. 177.] ******************** XIV SCIENCE AND MAN. XV. PROFESSOR VIRCHOW AND EVOLUTION. XVI. THE ELECTRIC LIGHT. ******************** PREFACE TO THE COLOUR AND CHEMICAL CONSTITUTION OF BODIES. IV. NEW CHEMICAL REACTIONS PRODUCED BY LIGHT. 1. DECOMPOSITION BY LIGHT. MEASURED by their writings to have been adduced to show its details. There is but a poor place in a line to.