Perhaps the most significant criticism of this paper is that it does not establish the priorities that determined the equipment used and the manner in which the radiation and magnetic data were to be collected. According to Dr. Behrendt, considerations for the magnetic survey were dominant and the radiation capability was added as a subordinate system. The desirability of using a system with spectral capability was recognized, but cost considerations dictated the final choice. Operationally, the prime consideration was for the factors influencing the collection of magnetic data so that radiation data were sometimes collected at less than ideal times.

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