A review of the chart of OSI's depth research publications since the establishment of the Office shows that for most of OSI's existence approximately one-half of its publications have been concerned with the basic and applied sciences and about one-half with weaponry research and development. Forty-eight percent of the total Office production in this period has been applied to reporting of basic and applied research. This division of effort has been fairly constant except for the early 1950s. At that time scientific intelligence reporting in the community was not well organized and early efforts were made to focus on weaponry developments as they were considered the most critical intelligence problems. OSI's role in this field, however, became very limited by the promulgation of DCID 3/4 in 1952 which limited OSI's areas of responsibility to the basic and applied sciences and gave the responsibility for weapons research and development to the military agencies.
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