Minutes of the Committee on Meteorology (1887-1897), and other sections, each devoted to a specific science (1870-1923); reports of medal awards and exhibitions (1824-1874), the International Electrical Exhibition, 1884, the Novelties Exhibition, 1885, and the National Export Exhibition, 1899; records of Franklin Institute Schools (1824-1923) including School of Mechanic Arts, High School, proposed New College, proposed School of Arts, School of Design for Women (1850-1853); Masonic Hall leases (1832-1842) being social functions and meetings in Philadelphia; and a letter from Samuel D. Ingham, Secretary of the Treasury, seeking cooperation of the Franklin Institute in the investigation of the causes of the bursting of steam boilers.