Uranography. A brief description of the constellations visible in the United States, with star-maps, and lists of objects observable with a small telescope Q Science
Gesammelte mathematische Werke und wissenschaftlicher Nachlass. Hrsg., unter Mitwirkung von Richard Dedekind Q Science
Petrography of Pennsylvanian underclays in Illinois and their application to some mineral industries Q Science
The earthquake of September 2, 1999, in northern Illinois : big lessons from a small earthquake Q Science
Biological experimentation, its function and limits, including answers to nine questions submitted from the Leigh-Browne Trust Q Science
