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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 8° 35' a.m. to 3° 15' moved down but from 11° 3' to 3° 15 zig-zagged. & then rose to 4° P.m & by 5° P.m. was above glass. At 7° 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 9° 40': at 10° 25' had risen, & next morning (Oct 1) at 6° 45' was high up, though leaf still asleep.

Then began to fall, as terminal leaflet unfolded, & continued to fall till 8° 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 8° to 12 went down pretty regularly, with one bend to light when fog became less. At 1° began to rise. But from 11° to 4° movement very slow. After 4° move upward movement rapid; but diagram exaggerates rapidity, as the bristle pointed very obliquely to vertical glass. At 5° 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 7° the this terminal leaflet still stood at right angle to petiole.—