X CONTENTS. 



CHAPTER PAGJ4 



XVIII. LIFE AND LETTERS OF FARADAY. t . . 399 



XIX. THE COPLEY MEDALLIST OP 1870 . . 422 



XX. THE COPLEY MEDALLIST OF 1871 . . 429 



XXI. DEATH BY LIGHTNING I . , 439 



XXII. SCIENCE AND THE SPIRITS , 444 



MAP 



SHOWING THE PARALLEL ROADS OF GLEN ROY . to face p. 227 



