Vol. 1, No. 9, p. 524, line 6: for “13 days at 2000 ft. in April” read “17 days at 2500 ft. in February.”
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Published online by Cambridge University Press: 30 January 2017
Vol. 1, No. 9, p. 524, line 6: for “13 days at 2000 ft. in April” read “17 days at 2500 ft. in February.”