Black and white photograph of the statistic sheets from the mastodon excavation project at Jonio Farm.

Black and white photograph of two men standing over mastodon bones in an excavation site at Jonio Farm. Another man is visible working in the background.

Black and white photograph of four men working on the mammoth skeleton excavation site at Jonio Farm. At the left, a man leans over a mammoth pelvis bone in plaster.

Black and white photograph of a woman standing in a forest.

Black and white photograph of a person sitting on the edge of a terrace overlooking a pyramid in a field.

Black and white photograph of the side of the Tenayuca pyramid. Next to the stone wall of the pyramid are smaller stone walls forming a courtyard area around the pyramid, and a statue in a sunken courtyard area.

Black and white photograph of a man standing in a doorway in the Tenayuca pyramid. Several children sit on the steps in front of the door, and another child stands on the other side of a sculpture next to the door on the right side of the frame.…

Black and white photograph of two men standing next to a stone wall of the Quetzalcoatl pyramid. Stone walls and carved designs and sculptures are visible around them. The image appears to be double exposed with another image of a rocky hillside or…

Black and white photograph of a dirt road leading to a pyramid on the top of a mountain.

Black and white photograph of a pyramid. A lower level is visible with a stone wall surrounding a stone building built into a hillside. A water tower is visible behind the building. Another building is visible is on top of a hill behind the first…

Black and white photograph of the active Jewel Geyser in front of a forest at Yellowstone National Park.

Black and white close-up photograph of Punch Bowl Spring in Yellowstone National Park.

Black and white photograph of the Fountain Geyser at Yellowstone National Park. Steam is rising from the geyser, and a pine tree stands between the geyser and the photographer.

Black and white photograph of Gibbon Falls in Yellowstone National Park. Gibbon Falls is surrounded by mountains and forest.

Black and white photograph of a road next to a mountainside with a mountain range visible in the distance.

Black and white photograph of a mountain partially covered with trees.

Black and white photograph of a mountain partially covered with trees.

Black and white photograph of a stone pillar. The image is somewhat blurry.

Black and white photograph of a tiled roof courtyard overlooking a city. Two cathedral towers are visible in the middle of the frame.

Black and white photograph of a hotel in with a garden in front of it. People are visible walking on the street and sidewalks next to the hotel.

Black and white photograph of a line of people on a crowded dock with barrels in the background. The image is taken from above.

Black and white photograph of people carrying bundles of bananas on top of their heads to a boat.

Black and white photograph of men placing bundles of bananas onto a conveyor next to a ship.

Black and white photograph of the SS Contessa moored to a dock. Railroad tracks cover the dock yard, and a man is visible walking along the tracks toward the railcars under an awning.