Black and white photograph of street at Richards Landing, Ontario.

Black and white photograph of river at Allegan, Michigan, looking east.

Black and white photograph of river walls in Grand Rapids, Michigan, looking north. A bridge and city skyline are visible in the background.

Black and white photograph of the Riverside Geyser in eruption, Yellowstone National Park. A group of people are standing and watching the geyser erupt. Taken by Robert Merrill looking east.

Black and white photograph of the Riverside Geyser in eruption, Yellowstone National Park. Taken by Robert Merrill looking southeast.

Black and white photograph of a tree-filled valley between two mountains with another mountain in the background.

Delta from side creek at road blockade between Salida and Denver, Colorado. In the foreground, two automobiles are parked on the roadway, and in the distance behind a small hill the top of a steam locomotive is visible.

Black and white lantern slide of a line of wagons traveling down a dirt road winding through a sorghum field in China. Men in uniforms holding rifles stand alongside the road, one of them appears to be speaking with a farmer in a wagon.

Black and white lantern slide of a stone bridge with three arches crossing a river in China. A crowd of people and several wagons are visible aross the bridge, with a few on the bank of the river below.

Black and white lantern slide of a dirt road with between steep hilsides. On the road are two small horse-drawn carriages and three people leaning against the earth wall.

Black and white lantern slide of a switchback mountain road near Jacala, Mexico.

Black and white lantern slide of a line of horse-drawn wagons traveling down a dirt road through farm fields in China. The wagons are laden with a variety of bags, baskets, and crates.

Black and white lantern slide of a crowd of people surrounding an overturned cart on a dirt path in China. Distant fields of grain are visible in the background.

Black and white lantern slide of a man wearing a pith helmet standing on a rocky hillside next to a rough path. On the path a laden horse-drawn cart is tilting precariously as it moves farther up the hill.

Black and white photograph of a Robert H. Merrill holding a trout in front of the steps of a house.

Black and white photograph Robert herrill sitting on a rock jutting out of a mountain side. Two other people pose on the rock nearby.

Black and white lantern slide copy of a genealogical chart of Robert Hall Merrill.

Black and white lantern slide of Robert Merrill and Audie Merrill standing with Flora (?) in front of Mushroom Rock in Rock City, Tennessee.

Black and white lantern slide of Audie Merrill, Flora (?) and Robert Merrill at Gnome's Overpass in Rock City, Tennesee.

Black and white lantern slide of Audie Merrill and another person stanidng on an overhead bridge in Rock City, Tennessee.

Black and white lantern slide of petroglyphs found in Parral, Mexico.

Black and white photograph of a tiered rock wall near Kaaterskill Falls, New York.

Black and white photograph of rocky landscape and train in motion on railroad tracks. Two engines and two passenger cars, all connected, are visible to the right of the photograph.

Black and white photograph of rocky landscape at Clyde. The front engine of a train is visible at the lower right edge of the photograph.