PAN of framework of Canadian National Railways terminal building, Notre Dame Reine du Monde Cathedral in background. Shots of cranes hoisting beams into place. Shots of half demolished buildings. Several views of men at work in excavation. TRAVELLING SHOT of Dorchester street as seen from over railway terminal tunnel entrance. TILT DOWN along tracks to HAS of entrance to tunnel below camera. TILT DOWN following train heading for tunnel entrance below camera. TILT DOWN small church with sign "For Sale". Several views of steam shovels in action, trucks.