Black and white photograph of a tree-covered mountain, Mount Stanton, with a road visible in the foreground.

Black and white photograph of Mt. Tampais.

Black and white photograph of the summit of Mt. Tamalpais.

Black and white photograph of a building at the bottom of a mountain. Railroad tracks are visible next to the building, and people can be seen standing on a platform outside the building.

Black and white photograph of a mountain with trees and a power line visible in the foreground. Another mountain is visible in the distance.

Black and white photograph of the Mt. Washington Hotel.

Black and white photograph of a valley in a mountain range.

Black and white photograph of two mountains.

Black and white photograph of two men and a woman standing in front of the Mt. Wilson Hotel. A water tower is visible in the distance.

Black and white photograph of two men and a woman standing in front of an observatory.

Black and white photograph of a mountain range intersected by roads.

Black and white photograph of the top of a mountain with a few buildings and water towers scattered over it.

Black and white photograph of Mud Volcano, Yellowstone National Park.

Black and white photograph of a group of people standing next to the Mud Volcano at Yellowstone National Park (mile 17450).

Black and white photograph of a group of people sitting on logs in a forest. Part of a camera on a stand is visible on the left side of the image.

Black and white lantern slide of a Chinese farmer plowing a field with a plow drawn by a cow and a mule.

Black and white photograph of a group of people sitting in a mule-drawn wagon. Three people are standing on the ground behind the wagon. Photograph was taken by Robert Merrill in the Chinese coastal resort area of Beidaihe Qu.

Black and white photograph of Naples, Italy taken from a boat.

Black and white lantern slide (dark) of the Naples, Italy harbor.

Black and white lantern slide of five men at the front of a train engine turning it manually.

Black and white lantern slide of people waiting on a railroad platform to baord a train in Yucatan, Mexico.

Black and white photograph of a crowd of people on the deck of a ship. "Nassau, 1926-2-21." is written on the bottom of the image.

Black and white photograph of a shark on the deck of a ship next to a railing. People are crowded around the shark, and two men are holding rope. The photo is taken from above, and "A Nassau Shark." is written on the bottom of the image.

Black and white photograph of people standing along the railing of the deck of a ship looking out towards another crowded passenger ship filled with people and a smaller boat that are sailing past. "Nassau Tender 1926-2-21." is written on the bottom…