Scope and Contents From the Collection: The Henry G. McClellan papers (MC 20) cover the period 1859-1882. The collection contains correspondence, student work from McClellan’s years at RPI, notes, a few miscellaneous printed items, and McClellan’s microscope. Series 1 – Correspondence, and Series 2 – General, are both arranged chronologically. The family correspondence documents McClellan’s travels, life, and work. Many letters are from his years in Ecuador, South America, 1870-1875; these record...