and finally 5,000 Ibs. to the square highway bridge ever built inthis land of great bridges, ex- inch! Now, the conundrum we submit to the mechanic is: Puzzle, and wasoriginally designed for the Centennial,where cepting the truly magnificent Girard avenue bridge, by How is the result brought about?… … al wih’ ———= ES SS J | Phite Eng oaey BRIDGE OVER THE HUDSON AT TROY, N.Y. eye. The mystery is concealed in the cylinder and tubes. of brass, is composed of a small cylinder, supported by and 488 feet; 1 span, 226 feet; 1 pivot draw, 258; 1 span, 85; 1 It would be as easy torun the pressure up to…
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