1 - 10 of 198 | Next Page »
1
AuthorStevens, John
Date Issued1812
2
AuthorGarfield, James A.
Date Issued1864
3
Date Issued1889
4
Date Issued2011
5
Date Issued2011
6
Date Issued1884
7
Date Issued1892
8
Date Issued1872
9
AuthorLou, Peng
Date Created2012
Degree Date2012-05
DescriptionIn United State, there are a lot of steel railway bridges with non-ballast tracks, which have short and simply supported spans. The majority of similar bridges on the passenger rail systems were built...
10
Date Created1911
DescriptionMap of Pennsylvania Railroad and it's connections in the states of Pennsylvania and New Jersey along with an inset of lines in Virginia.
Time PeriodThe Emergence of Modern America (1890-1930)