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Various

"A Weekly Journal of Practical Information, Art, Science, Mechanics, Chemistry, and Manufactures."



For the benefit of the Union Pacific railroad, the base of the Rocky
Mountains has been fixed at the base of the Black Hills, a distance of
6.637 miles west of Cheyenne, and, according to the railway surveys
525.078 miles from Omaha.
The Pittsburg, Fort Wayne and Chicago railway have just rebuilt in
the most permanent manner an iron bridge over the Alleghany river, to
replace the old wooden Howe truss bridge, which had become inadequate
to the increasing traffic. The new bridge opens like a fan towards the
freight yard at Pittsburg being at the narrowest part, next to the main
span 55 feet wide. The river is crossed with spans averaging 1531/2 feet
in the clear, with a bearing of five feet on each pier. The principle
of the construction is known as the lattice girder plan, with vertical
stiffening. The work was executed under the superintendence of its
designer, the engineer and architect of the company Felician Stataper.
The production of precious metals in the United States from 1849 to 1867
inclusive, has amounted in value to $1,174,000,000.
The president of one of the New Jersey railroads proposes a plan to
avoid the danger to life and limb from the series of trains that run
into and out of Jersey city.


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