Appendix II. Results of observations made at the United States naval observatory with the transit instrument and mural circle in the years 1853 to 1860, inclusive / By professor M. Yarnall, U. S. N., professor James, major, U. S. N., professor T. G. Robinson, U. S. N. ;Prepared by professor M. Yarnall, U. S. N., By order of Rear-Admiral B.-F. Sands, U. S. N., superintendant U. S. Navy observatory. Published by authority of the Hon. secretary of the Navy