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The Law of Sequence in the Yield of Wheat for Eastern England

Published online by Cambridge University Press:  27 March 2009

W. N. Shaw
W. N. Shaw
Affiliation:
Director of the Meteorological Office, London.
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Extract

In February 1905 I made a short communication to the Royal Society of London (Proceedings, Vol. Lxxiv. page 562), upon an apparent relation between the yield of wheat for England in the 21 successive years 1884 to 1904 and the aggregate rainfall for the three autumnal months (September, October, November) of the preceding years of the principal wheat-producing districts of Great Britain. The relation was put into the algebraical form:

Type
Research Article
Information
The Journal of Agricultural Science , Volume 2 , Issue 1 , January 1907 , pp. 17 - 28
Copyright
Copyright © Cambridge University Press 1907

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References

page 1 note 1 The earlier part of this paper is a reproduction with slight modifications of a paper on “The Law of Sequence in the Yield of Wheat for Eastern England, 1885–1904” contributed by the author to the “Hann Band” of the Meteorologische Zeitschrift. Vieweg und Sohn, Braunschweig, 1906.

page 21 note 1 I owe this method of dealing with complex periodic variations to Professor G. Chrystal of Edinburgh, who uses it for the discussion of the complex oscillations of the water of lakes under the name of the method of residuation.

page 25 note 1 Note. December, 1906. The official estimates for the several counties are not yet published. The general opinion is in that the yield was large but irregular as regards the Eastern counties.

page 27 note 1 The years marked * are those which according to the computed curve give yields exceeding the average by at least 2 bushels; for the others the theoretical yield is not much above the average.