American Philosophical Society

• Interrelations of the Fossil Fuels
• Proceedings of the American Philosophical Society Held at Philadelphia for ..
• Proceedings of the American Philosophical Society Held at Philadelphia for ...
• Proceedings of the American Philosophical Society Held at Philadelphia for Promoting Useful ..
• Valley Forge orderly book of General George Weedon of the Continental Army under command of Genl. George Washington
• Transactions of the American Philosophical Society