Endnote 2 – A Scientist Looks at Velikovsky’s “Worlds in Collision”

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Sill, G., “Sulfuric Acid in the Venus Clouds.” Communications Lunar Planet Lab., University of Arizona, 9:191–198 (1972).

Young, A. T., “Are the Clouds of Venus Sulfuric Acid?” Icarus, 18:564–582 (1973).

Pollack, J. B., Erickson, E., Witteborn, F., Chackerian, C., Summers, A., Augason, G., and Caroff, L., “Aircraft Observation of Venus’ Near-infrared Reflection Spectrum: Implications for Cloud Compositions,” Icarus, 23:8–6 (1974).