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Trifolium repens 1877

Sept 30 moderately young old leaf secured by thread thread barely 1 1/4 to stick, barely inch beneath leaflets; but to in doing this long petiole twisted much about & so leaf probably much disturbed. Terminal leaflet with bristle & observed along its length, & line traced on vertical glass— see Diagram (1)

Leaf at right angles to light. from 8º 35' a.m. to 3º 15' moved down but from 11º 3' to 3º 15 zig-zagged. & then rose to 4º P.m & by 5º P.m. was above glass. At 7º 13' leaf fully asleep. I now placed a changed position of mark so that I cd trace again on the same glass: when went on falling, (& this no doubt owing to terminal leaflet overlapping the lateral ones) till 9º 40': at 10º 25' had risen, & next morning (Oct 1) at 6º 45' was high up, though leaf still asleep.

Then began to fall, as terminal leaflet unfolded, & continued to fall till 8º when a new tracing began. See diagram (2.)

Oct 1' (next day) leaf & plant in same position, so not so much movement towards light— From 8º to 12 went down pretty regularly, with one bend to light when fog became less. At 1º began to rise. But from 11º to 4º movement very slow. After 4º move upward movement rapid; but diagram exaggerates rapidity, as the bristle pointed very obliquely to vertical glass. At 5º 33' almost asleep & then went beyond limits of glass. Position on morning of Oct 2d shown & when it terminal leaflet recommenced downward course. This sp. awakes late, as at 7º the this terminal leaflet still stood at right angle to petiole.—