Fonds consists of textual and visual materials created and received by Dorney over the course of his career, including drafts and reprints of most of his published writings, teaching and course materials, audio-visual materials, framed items, ephemera and realia. Of interest is an original map by Dorney which attempts to reconstruct the original vegetation patterns in North Dumfries Township in Waterloo County in the 19th century. Dorney's collection of slides is particularly significant in its documentation of natural vegetation, urban impact and areas of ecological interest both locally and elsewhere and includes extensive documentation of the "mini-forest" at his home at 124 Amos Ave. in Waterloo.