Black and white lantern slide copy of a map of Indian trails in west Michigan counties Ottawa, Kent, Muskegon, Newaygo, and Oceana.

Black and white lantern slide copy of a geological map of St. Paul, Minnesota.

Black and white lanern slide copy of a recession profile diagram of St. Anthony Falls, Minneapolis, Minnesota.

Black and white lanern slide copy of a recession map of St. Anthony Falls, Minneapolis, Minnesota.

Black and white lantern slide copy of a map of Lake Agassiz, large glacial lake in central North America during the last glacial period.

Black and white lantern slide copy of a map of Herculaneum.

Black and white lantern slide copy of a map of the Bay of Naples by Baedeker.

Black and white lantern slide of a map of flying routes over Yucatan, Mexico.

Black and white lantern slide copy of a sketch map of Hai-Ho flooded, labeled "Du Fleuve Bleu a Tsing-Kiang," from an unidentfied publication.

Black and white lantern slide copy of a sketch map of Hai-Ho, labeled "Partie Dasse Du Hia-Ho," from an unidentified publication.

Black and white lantern slide copy of a map of the Plan of Hai-Ho from Tientsin City to Sea from the Hai Ho Conservancy Commission. Much of the small text of the map is illegible due to the low quality of the image.

Black and white lantern slide copy of a map of Shantung, China, from an unidentified publication.