A SERIES OF DETACHED ESSAYS, ADDRESSES, AND REVIEWS. BY JOHN TYNDALL, F.R.S. LONDON: PRINTED BY SPOTTISWOODE AND Co, NEW-STREET SQUARE PARLIAMENT STREET SIXTH EDITION. VOL. II. LONDON: LONGMANS, GREEN, AND CO. 1879. All rights reserved. PREFACE TO THE SIXTH COMMANDMENT 0.75 III. ROSE'S TEMPTATION. THE FOURTH COMMANDMENT 0.75 V. HYACINTHE AND HER BROTHERS. THE SIXTH EDITION. TO AVOID unwieldiness of bulk.