STATEMENT, showing the number and condition of each sort of IRON WORKS, and the capital invested in the Land and Buildings
in each County in WESTERN PENNSYLVANIA, in the year 1850.

A Detailed Statement of all the CHARCOAL HOT-BLAST FURNACES IN WESTERN PENNSYLVANIA in the year 1850.

A Detailed Statement of all the RAW BITUMINOUS COAL HOT-BLAST FURNACES IN PENNSYLVANIA, in the year 1850.

A Detailed Statement of all the COKE HOT-BLAST FURNACES IN THE STATE OF PENNSYLVANIA in the year 1850.