That is a technical matter which the engineers have threshed out thoroughly. _ It is something that I do not know anything about; and I say with candour that I think there are few gentlemen in this room who know anything about it. But I do not mind giving what seems to me an illustration of it. My hon. friend (Mr. Lennox) has seen a lattice fence. If it were built on the double intersection principle, the lattices would be double. Engineers take the position that it is much easier to calculate the direct stress on the members of a single intersection than to divide up the strains amongst the members of the double intersection. At all events, as I say, all those companies that put in their own designs must have favoured the single intersection, as they based their tenders upon that principle.
Now, as to safety. As I have stated to the House on previous occasions, the instruction always given to the members of the board was that safety was the first consideration. We have had one disaster. As my hon. friend (Mr. Lennox) says, we are not now discussing who was at fault; but we have had one disaster, the most lamentable part of which was the great loss of Mr. GRAHAM.
life. We must provide against anything of that kind in the future. The question of safety might be divided into two periods. There is the question of safety after the bridge is erected-that is one thing that is most essential. But there is another which is second in importance only to the first, and that is safety during erection. One of the chief points under discussion by the board at various times has been, if possible, to secure a design that will afford the greatest safety to both life and property during the time of erection; in fact, at one time that was the chief subject of disagreement among the members, each contending for his own theory, the one part of the board pointing out that it was
Subtopic: SAFETY, THE FIRST ESSENTIAL.