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Publication Information

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Title: The technique of duff hygrometer calibration

Author: Kachin, T.; Gisborne, H. T.;

Date: 1937

Source: Journal of Forestry. 35(8): 736-743.

Publication Series: Scientific Journal (JRNL)

Description: The moisture content of the top layer of coniferous needles and twigs covering the forest floor is one of the factors of forest fire danger which must he determined accurately if fire danger in such timber types is to he measured. As this moisture content cannot he estimated accurately and as a difference of a few per cent of moisture, especially in the lower range, has been found to cause significantly different inflammability, measurements rather than estimates are needed.

Keywords: duff hygrometer, moisture content, needles, forest floor, fire danger

Publication Notes:

  • We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
  • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.



Kachin, T.; Gisborne, H. T. 1937. The technique of duff hygrometer calibration. Journal of Forestry. 35(8): 736-743.


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