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Railroads
12
Canals
2
Coal mines and mining
2
Coal trade
2
Natural history
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%SP6
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1
Published 1846
Subjects and Genres: ';
“...Railroads Pennsylvania....”
Record Source:
Published Materials
Book
2
Published 1859
Subjects and Genres: ';
“...Railroads Pennsylvania....”
Record Source:
Published Materials
Book
3
Published 1852
Subjects and Genres: ';
“...Railroads Pennsylvania....”
Record Source:
Published Materials
Book
4
Published 1852
Subjects and Genres: ';
“...Railroads Pennsylvania....”
Record Source:
Published Materials
Book
5
Published 1850
Subjects and Genres: ';
“...Railroads Pennsylvania Early works to 1850....”
Record Source:
Published Materials
Book
6
Published 1853
Subjects and Genres: ';
“...Railroads Pennsylvania....”
Record Source:
Published Materials
Book
7
Published 1854
Subjects and Genres: ';
“...Railroads Pennsylvania....”
Record Source:
Published Materials
Book
8
Published 1854
Subjects and Genres: ';
“...Railroads Pennsylvania....”
Record Source:
Published Materials
Book
9
Published 1845
Subjects and Genres: ';
“...Railroads Pennsylvania Early works to 1850....”
Record Source:
Published Materials
Book
10
Published 1845
Subjects and Genres: ';
“...Railroads Pennsylvania Early works to 1850....”
Record Source:
Published Materials
Book
11
Published 1855
Subjects and Genres: ';
“...Railroads Pennsylvania....”
Record Source:
Published Materials
Book
12
Subjects and Genres: ';
“...Railroads Pennsylvania History 19th century....”
Book