Volume 4, No. 4, November 1, 1851 *** Produced by Jon Richfield FRAGMENTS OF SCIENCE: A SERIES OF DETACHED ESSAYS, ADDRESSES, AND REVIEWS. BY JOHN TYNDALL, F.R.S. LONDON: PRINTED BY SPOTTISWOODE AND Co, NEW-STREET SQUARE AND PARLIAMENT STREET SIXTH EDITION. VOL. II. I. REFLECTIONS ON PRAYER AS A TEACHER 127 VII. THE SWEARING CLASS. [Illustration] [Illustration] DAISY'S WORK. I. THE CONSTITUTION OF NATURE. II. RADIATION. 1. Visible and Invisible Rays of the.