| Date Note | Span date of other slides in this collection based on business addresses |
| Description | Black and white lantern slide of an illustration showing a schematic of glacial landforms based on a plate from Louis Agassiz's 'Etudes sur les glaciers' (1840), possibly by Flatters and Garnett Ltd, Manchester, [1901-1932]. The diagram includes medial and lateral moraines, erratics, cirques, arretes, horns, u-shaped valleys, and the structure of glacial debris. |