Transactions of the Wisconsin Academy of Sciences, Arts and Letters
volume V (1877-1881)
Swezey, G. D.
On some points in the geology of the region about Beloit, pp. 194-204 ff. PDF (2.6 MB)
Based on date of publication, this material is presumed to be in the public domain.| For information on re-use, see http://digital.library.wisc.edu/1711.dl/Copyright