“ All bearings are from true meridian. The Estado Mayor, comprising an area of 10,380 square meters (about 2.565 acres) , bounded on the north by military land; on the east by the Pasig River; on the south by land of the City of Manila; on the west by Calle Arroceros ”

“ The bearings are true, and are determined from the bearing of the last course of this survey (points "46" to "1") , as given in the map of Fort Santiago made under the direction of Captain William M. Harts, in March and April, 1903. ”