143; transmitter, 138, _139_. Yale lock, _436_, _437_. Yellow spot, in eye, 251; yellow, in eye, 251; yellow, in eye, 251. Spring balance for watches, 415. Gooch reversing gear, 65. Governors, speed, 67; of motor cars, 110. Spot, blind, 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. II. LONDON: LONGMANS, GREEN, AND CO. NEW-STREET SQUARE PARLIAMENT STREET SIXTH EDITION. VOL. II. LONDON: LONGMANS, GREEN, AND CO. 1879. All rights reserved. PREFACE TO THE ETEXT OR ANY MEDIUM IT MAY BE ON, INCLUDING BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY OR FITNESS FOR ANY.