Black and white photograph of Blue Grotto taken from on a boat. A man is visible on the left of the frame. An arched grotto on a cliff is visible in the distance.

Black and white photograph of a town on the far side of a lake. The town is in front of a hill.

Black and white photograph of a man working in front of a lake. Houses and power lines are visible on the far side of the lake. An automobile and the corner of a porch are visible on the right side of the frame. A sign on the porch reads "330531."

Black and white photograph of five people, three men and two women, standing in front of a lake surrounded by forest. Another person is visible standing in the water on the right side of the frame holding cloth. "Blue Hole, Jamaica. 1926-2-4." is…

Black and white photograph of a town on in the Blue Ridge Mountains, overlooking countryside. In the midground, a building with a sign reading "Nathans" is visible.

Black and white photograph of a group of people standing next to a train car. An excursion boat is moored next to the train car, and three people are visible standing on the boat.

Black and white photograph of a man traveling by boat by Maybees Waste Weir, Erie Canal. The name on the side of the boat reads Shenandoah.

Black and white photograph of Bolt's boat house on Alexandria Bay, New York. Water damage is visible on the image, which was scanned from the negative.

Black and white lantern slide of a sketch diagram of a bone implement, Elephas antiquus, found at Piltdown, England.

Black and white photograph (damaged negative) of mastodon bones in an excavation site.

Black and white photograph of a lake from a hillside. Trees can be seen surrounding the lake and in the background.

Black and white photograph of a man and a woman sitting on a deck attached to the side of a house. The photo is taken from ground level looking up a flight of wooden stairs to the deck.

Black and white photographs of boxers Sisson and P. Two men in the center of the image are wearing suits and boxing gloves. Several other men in suits and hats observe in the background.

Black and white photograph of the Boxwood Cemetery in Medina, New York, An unidentified woman, possibly Merrill's wife Lena, is visible in the midground of the image.

Black and white photograph of a group of people standing on the dock at Mackinac Island, Michigan, likely taken from a boat.

Black and white photograph of a dirt road on a hillside. A wooden fence runs alongside the road and a cow is visible standing on the roadside. Farmhouses are visible in the background, with a cliff face and hills prominent in the background.

Black and white photograph of brick yards along the Hudson River below Hudson, New York. Water damage is visible on the image, which was scanned from the negative.

Black and white photograph of brick yards along the Hudson River near Coeymans, New York. Water damage is visible on the image, which was scanned from the negative.

Black and white photograph of a bridge across the Hudson River at Poughkeepsie, New York. Water damage is visible on the image, which was scanned from the negative.

Black and white photograph looking down on a valley filled with shrubs and small trees from a rocky ledge.

Black and white photograph of the Brockville, Ontario cityscape. Taken by Robert Merrill from boat. A sign on the roof of one building reads Where Chester Suspenders Are Made.

Black and white photograph of shoreline and pier at Bruce Mines, Ontario.

Black and white photograph of a rock ledge from above.

Black and white photograph of a cliff face with mountains in the background.