Northern Luzon (military) “Department of,” Districts of, [252]–8
Nueva Ecija, area and pop., [233]
Nueva Vizcaya, area and pop., [255]
O
Ohio, size of Luzon, [232]
Ola, Simeon, [423] et seq., [436]
Oldfield neutralization resolution, [648]
Olongapo garrison, surrender of, [58]
Otis and the war: Feb. to fall, 1899, [186]–223;
thence to May, 1900, [224]–269