On Thursday morning ot last week, as the first train down was entering this tunnel, the engineer perceived something looming up dark on the track, put on the brakes, and arrested the train just in time to prevent a fearful collision, with a huge mass ot falling rock, and thus saved the lives of perhaps 30 or 40 passengers. There were about 400 passengers on the train, and had it been a night instead of a day train, there can be no doubt but a fearful loss of life would have been the result. It is good that a merciful Providence watches over the lives of the passengers who journey through that tunnel, lor the Railroad Company do not. Last year a mass of rock fell down in this tunnel just after a train had passed ; at that time we directed attention to a means for preventing the contingency of an accident by any such a cause ; this was to arch the whole interior of the tunnel with brick, wood, or iron. This will prevent the rock from falling down.— The Grand Jury of New York should indict the company for keeping this tunnel in such a state—it should be declared unsafe and dangerous. This should be done at once, for we are sure that no less than 10,000 passengers pass through this tunnel every day. One of the engineers, to our knowledge, has declared that he never enters this tunnel with his engine without experiencing a fearful foreboding. This is an evil which should be remedied at once. Will the Railroad Company see to it that this is done