A contribution to the geology of the pre-Cambrian igneous rocks of the Fox river valley, Wisconsin. - Weidman, Samuel, 1870- (Madison, Wis., Published by the state, 1898)
I. The Utley metarhyolite.--II. The Berlin rhyolite-gneiss.--III. The Waushara granite.
Several plates accompanied by leaf with brief description.
"Some previous work on microperthite and soda-microcline": p. 58-63.
Keywords: Geology, Stratigraphic -- Precambrian; Geology -- Wisconsin -- Fox River Valley; Igneous rocks