PREFACE.
ILLUSTRATIONS.
CHAPTER I.
CHAPTER II.
Dimon’s Reef, New York Harbor.
CHAPTER III.
METHOD OF ANALYSIS.
CHAPTER IV.
CHAPTER V.
CHAPTER VI.
CHAPTER VII.
CHAPTER VIII.
HOOSAC TUNNEL PROGRESS FOR MARCH, 1872.
CENTRAL SHAFT.
Instructions for Handling and Using MOWBRAY’S TRI-NITRO-GLYCERIN.
APPENDIX.
A. MEMORANDA FOR CONTRACTORS.
B. “OVER-SENSITIVE” EXPLODERS.
C. PROFESSOR ABEL ON EFFECTS OF INITIAL EXPLOSION ON EXPLOSIVES.
D. NITRO-GLYCERIN CAR OFF THE TRACK.
E. ACCIDENTS AT THE HOOSAC TUNNEL.
