The "Fern ledges", Carboniferous flora of St. John, New Brunswick,
by Marie C. Stopes.
- Ottawa, Government Printing Bureau, 1914.
- vi, 167 p. viii p. illus., XXV pl. 24 cm.
- Canada. Geological Survey. Memoir 41. Geological series, no 38 .
- Memoir (Geological Survey of Canada) ; 41 .
At head of title: Canada. Department of mines. Classified list of recent reports of Geological survey: p. i-iv (at end)