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From page 49... ...
Low Temperature. A sleeping bag would be in this grade if it failed to provide six hours sleep at night, since the mission of a sleeping bag is to provide sleep for at least this long a period at night.
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From page 50... ...
It is not the purpose of this paper to discuss them, but rather to give the laboratory worker factual information about the kinds of work and stress involved in military service, so that realistic metabolic rates may be used in experiments and calculations related to military equipment. Army activities can be divided into two broad classes: those which involve a fairly steady work rate, and those in which the work rate is highly irregular.
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