Addresses at the inauguration of Jared Sparks, LL. D., as president of Harvard college, Wednesday, June 20, 1849. - 01SSHELCO_STLIBPA - State Library of Pennsylvania - sshelco-primo

Letter to Lord Mahon : being an answer to his letter addressed to the editor of Washington's writings - 01SSHELCO_STLIBPA - State Library of Pennsylvania - sshelco-primo

Foreign relations of the United States. Diplomatic papers. - Georgetown University

The influence of scientific discovery and invention on social and political progress. Oration delivered before the Phi beta kappa society of Brown University, Providence, R.I., on commencement day, September 6, 1843. - State Library of Pennsylvania