McCulloh, R. S. 1. (1851). Memorial to the Congress of the United States,: Requesting an investigation and legislation in relation to the new method for refining gold, of Prof. R.S. McCulloh, of the College of New Jersey, late melter and refiner of the United States Mint. Princeton, N.J.: John T. Robinson, printer..

McCulloh, R. S. 1818-1894. Memorial to the Congress of the United States,: Requesting an Investigation and Legislation in Relation to the New Method for Refining Gold, of Prof. R.S. McCulloh, of the College of New Jersey, Late Melter and Refiner of the United States Mint. Princeton, N.J.: John T. Robinson, printer., 1851.

McCulloh, R. S. 1818-1894. Memorial to the Congress of the United States,: Requesting an Investigation and Legislation in Relation to the New Method for Refining Gold, of Prof. R.S. McCulloh, of the College of New Jersey, Late Melter and Refiner of the United States Mint. Princeton, N.J.: John T. Robinson, printer., 1851.