pt. 1. North America, Greenland and the North Pacific Ocean. -pt. 2. Central and South America, the West Indies and Bermuda. -pt. 3. Europe and the Azores. -pt. 4 ...
Industry leaders realized hundreds of years ago that their processes and machines operate best when the indoor relative humidity is maintained at an optimum level for their process. They found it was ...
At head of title: U.S. Dept. of Agriculture, Weather Bureau. siris_sil_32796 ...
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