A crustal refraction experiment was shot in August 1965 in Hudson Bay as part of a comprehensive survey encompassing the fields of geophysics, geology, and oceanography. Nine university and government crews participated. Eight stations were located on the periphery of the bay, while telemetering sonobuoys were monitored at a central location in the bay. Good quality data were obtained from 41 shots. All preliminary data pertaining to participants, instrumentation, shot times and distances, travel times, etc. are tabulated in this report.

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