Dry Pass camp site.

Yakobi Peak triangulation signal.

Offshore triangulation station.

Triangulation Station Baldy with the proud builders.

Field records associated with the SURVEYOR 1925 season in SE Alaska.

A Philippine Islands topographic party. Men with rifles are part of the Philippine Constabulary assigned to the survey crews for protection while working in the southern islands.

Mount Mayon on June 27, 1928, looming above Legaspi.

Mount Mayon in eruption on July 21, 1928.

A salt water crocodile at Sandakan, Borneo.

Carabao provided transportation in Borneo.

Coconut palm trees and a native home.

A traveler palm tree (Ravenala madagascariensis).

An overactive coconut palm.

Elephant Rock, an erosional remnant.

A seaside residence on tropic seas.

Tapping rubber from a rubber tree.

A rubber plantation on Borneo.

A huge log being placed on a railroad car at Batottan, British North Borneo.

Destruction caused by logging at Batottan.

Mt. Mayon, an active volcano, weighing in at 7,952 feet.

Mt. Mayon, an active volcano, looming over Legaspi.

The offshore tide house at Biri Biri.

Village in Batottan, British North Borneo.

Logging in Batottan, British North Borneo.

A huge log being placed on a railroad car at Batottan, British North Borneo.

Destruction caused by logging at Batottan.

Some Coast Surveyors swimming in the Mauo River, Sorsogon Province. Leonard "Jack" Johnson, Charles Pierce, Henry Healy, Bill Scaife.

Boat landing area along the Mauo River on Samar Island. Coast Surveyors would come here for fresh water.

A mooring buoy in San Bernardino Straits when the current was running hard.

A mooring buoy in San Bernardino Straits when the current was running hard.

The tide station at Biri Biri.

Building Station "Clinic" on Ticul Island. Photo #6.

Building Station "Clinic" on Ticul Island. Photo #1.

Building Station "Clinic" on Ticul Island. Photo #1.

Building Station "Clinic" on Ticul Island. Photo #1.

Building Station "Clinic" on Ticul Island. Photo #1.

Building Station "Clinic" on Ticul Island. Photo #1.

Camp on Ticul Island - the tent of Charles Pierce and Leonard Johnson.

Chow time at the camp on Datubatu Island.

Station Thirst on Bas Bas Island.

Station Lag on Tubulubac Island.

Station Mal on Malicut Island.

Rizal Park and Spanish Church at Jolo.

The market place in Jolo.

The old Spanish Gate at Jolo.

Moro father and son in wedding regalia.

Second man in the province wearing Moro ceremonial dress and displaying a Kris, the traditional Moro sword.

Bill Scaife observing angles at Station Tamba.

Building and observing crew at Station Tamba on Tambagaan Island. Bill Scaife is second from right on bottom.