Black and white lantern slide of a lava cap south of Pocatello, Idaho, with a railroad and road in the mid and foreground.

Black and white photograph of the boat "Imp" on the water at Port Sheldon, Michigan. Six people, including one man, four women, and one baby, are riding in the boat. A cloth awning is draped over the passengers, and an American flag is mounted on the…

Black and white photograph of four people in a boat on the shore of Gravel Lake [likely Lac des Gravier]. Taken by Robert Merrill from north.

Black and white photograph of a river and mountains from Inspiration Point (mile 17502).

Black and white photograph of Robert H. Merrill standing in front of the interior columns of the Temple of Neptune.

Black and white lantern slide of an excavated burial site with a human skeleton.

Black and white lantern slide of an excavated burial site with a human skeleton.

Black and white lantern slide of a herd of camels on a dock in Naples, Italy. Nearer the camera a line of men in uniform stands facing the camels, and several buildings are visible in the background.

Black and white lantern slide close up view of an artistic depiction of Apollo wrapped in a python with Agamemnon and Artemis from Pompeii. Serie Artistica No. 12143

Black and white lanter slide close up view of an artistic depiction of a chariot race between several people with wings in Pompeii. Serie Artistica No. 12141

Black and white lantern slide close up view of an artistic depiction of winged silversmiths in Pompeii. Serie Artistica No. 11980

Black and white lantern slide (dark) of a decorated interior room in a house in Pompeii. Serie Artistica No. 12138