Coke, 395. Combinations in Chubb lock, 436; Yale lock, _436_, _437_. Yellow spot, in eye, 251; yellow, in eye, 251. Zech, Jacob, 414. Zeiss field-glasses, 260. THE END. LONDON: PRINTED BY SPOTTISWOODE AND CO, NEW-STREET SQUARE PARLIAMENT STREET SIXTH EDITION, VOL. 1. LONDON: LONGMANS, GREEN, AND CO. 1879. All rights reserved. PREFACE TO THE COLOUR AND CHEMICAL CONSTITUTION OF NATURE. II. RADIATION. [Footnote: The iridium light was then opened the grate, and the.