Books by Roland Duer Irving
The Penokee iron-bearing series of Michigan and Wisconsin
Preliminary paper on an invest
Preliminary paper on an investigation of the Archaean formations of the northwestern states
The copper-bearing rocks of lake Superior
Atlas of the geological survey
Atlas of the geological survey of Wisconsin
On the age of the quartzites,
On the age of the quartzites, schists and conglomerates of Sauk county, Wisconsin