Stouffville Station, June 18.—Lake Simcoe Junction Railway—The first rail on the Lake Simcoe Junction Railway was laid to-day, Mr. John Boucher, Secretary, putting in the first both, and Mr. Newton Graham, one of the directors, driving the first spike. The grading on the road is all completed to Sutton, and the track will be pushed through to the Lake Simcoe terminus as fast as practicable.