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29601. Moisture and dryness, or the analysis of atmospheric humidities in the United States: an essay read before the American Climatological Association (1884), and including the presentation of a rule of moisture and dryness, by which the climate is evenly subdivided according to the combined evidences of moisture, together with seasonal cloudiness and absolute humidity Signal Service charts

29604. Canities

29605. Atrophia pilorum propria

29608. What is ozone?