Fig. 3.

Leaf movements of C. ensiformis recorded by Kleinhoonte (1929) during July 1926, over a 4-d period immediately before FQ Moon. The conventions which apply to the various panels of this figure are the same as for Fig. 2. The horizontal bars under portions of the trace for δ(δg) indicate a small range of values above and below zero which might serve as an effective threshold of an Etide turning point in relation to a leaftide turning point. Leaf trace redrawn from fig. 1 in Kleinhoonte (1929).