Fossil plants - lignite tertiary. B.N.A.Boundary Commission, Plate XVI, sheet of paper with 10 different drawings of fossil plants. "A.L.D.Delt" printed on bottom-left corner.

Dadoxylon materiarium, critical and rare post-Pliocene species (Canadian Naturalist). Includes the text: Geology of Prince Edward Island, Plates I & VII. Two separate sheets mounted on pink cardstock with a total 23 fossil drawings. "A.L.D.Delt and LEGGO & co. Montreal" printed on bottom left and right corners.

Two pages of notes with the titles “Note on [Topul] Woods from Yukon Territory, Dec 1884,” “Specimens from Belly River in black carbonaceous shale,” and “Finil Woods, Rink rapids, Lewis River.”

Map of Egypt. Contains an extensive note on Tel-el-Maskhuta; surveyed by Lieutenant Colonel Ardagh, Major Spaight and Lieutenant Burton; lithographed at the Intelligence Branch, War Office, under the direction of Major W.R. Fox; 2 copies of the same map.

Geological map of Wisconsin. Includes the text: Geological Survey of Wisconsin, showing the relations of its geology with that of the surrounding states; Compiled from the work of the geological surveys of Wisconsin and Iowa, and from the surveys of Dr. D.D. Owen, Foster and Whitney, and Professor A. Winchell.

Plan of part of the Cumberland Coal Field. Includes the text: From Nappan River to River Philip on the intercolonial railroad and at Joggins and Spring Hill.

Chart of the St. Lawrence from Cape Chat to Bic Island, Part I. Includes the text: Surveyed by Captain Bayfield; London, published according to Act of Parliament at the Hydrographic Office of the admiralty December 1, 1837.

Watercolour painting, on linen, with a frontal view of a human skull. The skull is showing signs of erosion.

Watercolour painting of ancient Egyptian hieroglyphics.

Letter from John William Dawson, Edinburgh, to Margaret A. Y. Mercer , 11 Arniston Place, Newington, Edinburgh
Has done a considerable proportion of his work. Describes the singing of the birds in front of the castle.