Howard Horton writes to Josiah Meigs, President of the Columbian Institute, transmitting a specimen of gympsum to be delivered to the President and Secretaries Crawford and Calhoun. Dated 2 March 1822.
Howard Horton writes to Josiah Meigs, President of the Columbian Institute, transmitting a specimen of gympsum to be delivered to the President and Secretaries Crawford and Calhoun. Dated 2 March 1822.