Color lantern slide of Grand Teton mountain taken from Snake River, Wyoming.

Color lantern slide of Grand Teton mountain taken from Jenny Lake, Wyomoing.

Black and white lantern slide of a derailed train on the NY Central line near the Mohawk River, surrounded by a crowd of people. The image is dark and out of focus.

Black and white lantern slide of Robert Merrill (3rd from left) with members of his family in Macatawa, Michigan. Lena Billington Merrill stands at the far right. Other family members are not identified.

Black and white lantern slide of the Merrill family lakeside cottage in Macatawa, Michigan.

Black and white lantern slide of the Golden Gate Viaduct in Yellowstone National Park.

Black and white lantern slide of a black bear cub.

Black and white lantern slide of a black bear cub.

Black and white lantern slide copy of a sketch map showing Lake Tonawanda and spillways from it to glacial Lake Iroquois, with surrounding text from an unidentified publication.

Black and white lantern slide copy of a sketch map of the vicinity of Lake Ontario showing physiographic divisions, with surrounding text from an unidentified publication.

Black and white lantern slide copy of a sketch map showing moraines around the west end of Lake Ontario, with surrounding text from an unidentified publication.

Black and white lantern slide copy of a sketch of Niagara Falls done in 1698 by Father Louis Hennepin.