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U. S. Department of Agriculture3
Abstract
A method is described for visualizing the significance of series of temperature and humidity readings made at different times, in different places, or under different circumstances. Each series is plotted on a psychrometric chart; statistical treatment carried out, using the chart lines as class limits; the outlying points joined to make an envelope; and the mean and standard error clearly plotted on the chart. The ease of interpretation is illustrated with data from Louisiana.
1 Professor of Physiological Climatology, Johns Hopkins University, Baltimore.
2 Cooperative Agent, Iberia Livestock Farm, Jeanerette, La.
3 Dairy Husbandry Research Branch, Agricultural Research Service.
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