Show WORKMEN BLOWN TO PIECES explosion of dynamite occurs in the heart of new york city new york three men were blown to pieces seven others were more or less seriously hurt and the occupants of fashionable hotels and residences in the vicinity of fifth avenue and thirty fourth street were startled tuesday by an explosion of dynamite in the excavation tor shenew altman building the explosion was caused by a workman unintentionally striking a heavy charge of dynamite which had been placed in a drill hole in a ledge of rocks several days ago and which defied all efforts to explode it at that time |