No. 21. Negros.

1899

U.S. Coast and Geodetic Survey

1:665k

[Islas filipinas - Negros]

1900

Algué, P. José

Carta General Del Archipielago Filipino

1897

1:754k

Map of the Visayan Group Philippine Islands Including Panay Negros Samar Leyte Cebu Masbate Bohol and Adjacent Islands

1902

Julius Bien & Co.

1:548k

Map of the Visayan Group Philippine Islands Including Panay Negros Samar Leyte Cebu Masbate Bohol and Adjacent Islands

1900

Julius Bien & Co.

1:547k

No. 27. Mindanao Oriental.

1899

U.S. Coast and Geodetic Survey

1:2m

Geologic reconnaissance map of Mindanoa / Bureau of Science, Division of Mines ; P. Moskaira, engraved ; geology by Warren D. Smith

1915

Bureau of Science . Division of Mines

[Islas filipinas - Mindanao oriental]

1900

Algué, P. José

No. 26. Mindanao Jolo.

1899

U.S. Coast and Geodetic Survey

1:3m

Partie, Iles Philippines. Oceanique no. 6.

1827

Vandermaelen, Philippe, 1795-1869

1:2m