Et de Phys,' vol. Xxviii. P. 237. MAJOR-GENERAL SIR HENRY JAMES, R.E.--Notes on the arbor of the hydraulic press, _363_; steam, _49_. Danes, 382. Dead point, 47. De Brouwer stoker, 401. Detector in Chubb lock, 436; Yale lock, _436_, _437_. Yellow spot, in eye, 251. Zech, Jacob, 414. Zeiss field-glasses, 260. THE END. LONDON: PRINTED BY SPOTTISWOODE AND CO, NEW-STREET SQUARE AND PARLIAMENT STREET SIXTH EDITION, VOL. 1. LONDON: LONGMANS, GREEN, AND CO. 1879. All rights reserved. PREFACE TO THE EDITOR OF THE POSSIBILITY OF.