By HYDROGRAPHIC OFFICE; BLACKWOOD, Captain F[rancis] P[rice] et al, Decr. 19th 1860. Large corrections Aug 1880. March 1887. August 1889. April 1890.
By HYDROGRAPHIC OFFICE, 15th June 1881. Large corrections May 1882.
By HYDROGRAPHIC OFFICE; BLACKWOOD, Captain F[rancis] P[rice], 20th Feby. 1856. Large corrections Aug. 72, Apr. 74, May 1893.
By HYDROGRAPHIC OFFICE; STANLEY, Captain O[wen], March 29th 1843. Large corrections Aug. 76, Aug. 79, Oct. 1888.
By HYDROGRAPHIC OFFICE, Septr. 12th 1855. Large corrections Novr. 1874. Dec. 1886, Dec. 1887, Nov. 1891. Small corrections [to 18]92.
By IMRAY, James F[rederick], 1887. Corrected to 1888.
By IMRAY, LAURIE, NORIE, AND WILSON;APPLETON, J[ames] W[illiam], 1907.
By IMRAY, James F[rederick], 1892. Corrected to 1894.
By HYDROGRAPHIC OFFICE; TARDY MONTRAVEL, Lieutenant [Louie-Francois-Marie de]., July 7th 1853. Large corrections Decr. 1884. Corrected to 1896.
By UNITED STATES HYDROGRAPHIC OFFICE, April 1885. Corrected to May 15 1897.
By HYDROGRAPHIC OFFICE; LOFTUS, Commander A[lfred] J[ohn], 1st Nov. 1889. Small Correction to 1894.
By VIDAL, Captain A[lexander] T[homas] E[meric]; et al, 1876.
Sao Marcos Bay, Brazil 

