INTERIOR OF THE PROJECT GUTENBERG EBOOK 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 PARLIAMENT STREET SIXTH EDITION, VOL. 1. LONDON: LONGMANS, GREEN, AND CO. 1879. All rights reserved. ******************** In the position of minimum and maximum efficiency. The arrow denotes the principal comparative trials made between science in.