1. Bouguer gravity anomaly map of the United States (exclusive of Alaska and Hawaii);American Geophysical Union;U. S. Geol. Surv. Spec. Map,1964
2. L. O. Bacon Investigation of the thickness of the Jacobsville sandstone by seismic reflection methods-a progress report (abstract) 57 1964
3. Aeromagnetic survey of parts of Baraga, Iron, and Houghton counties, Michigan, with preliminary geologic interpretations;Balsley;V. S. Geol. Surv. Geophys. Invest. Map,1949
4. Thermal conductivity, climatic variations, and heat flow near Calumet, Michigan;Birch;Am. J. Sci.,1954