Volume 7, Issue 10
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Features
Notes on Naval and Military Affairs
Gas Furnaces for Glass
Iron for Buildings
The Quality of Iron Plates
The Worthlessness of Our Forts
Coal--Its Cost and Supply
Porous Water-Proof Cloth
Manuring Plants through their Leaves
Valuable Receipts
New Discovery in Iron-Clad Ships
Our Military Department
Miscellaneous Summary
Recent Foreign Inventions - September 6, 1862
Patents Claims - September 6, 1862
Issued from the United States Patent Office