(1

Marsilea quadri. 1877 (Sleep)

Oct. 6

Fix Moderately young leaf with bristle facing light— went tremendously down & to S.E., I believe only tending to place leaflet vertically to face light but at 12° 30' seemed to go back at 12°. 57 tied up leaf, it than move up a short distance & again went down as before, which makes me think it was light.

[in margin:] Bristle fixed to one of 2 inner leaflets when asleep

At 4° 37' had risen & this no doubt was for sleep & then continued to rise rapidly parallel to its downward course. At 5°. 30' was going to sleep. Next morning (7'') at 7° a.m fast asleep & at 8° 30' not fully awake & this make me think study too cold. (At night on 6th I observed the leaf when asleep & made dot at 6°.— At 7° 10' & 8°. 5' had sunk a little. At 8° 30' up on same line — At 10° seemed to have made a little ellipse. At 10° 35' lower than it had been before. Therefore leaflet seems to be in movements whilst fast asleep.)

[slip of paper pasted on]

Marsilea. (Crptogam.) a most distinct pulvinus or joint — formed of small cells, differently coloured from lamina & lower part of Petiole.—

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Marsilea 1877

Oct 7th in Study same leaf in same position so little heliotropism see diagram (1). First dot made at 8° 45' at first I fancy half-paralysed. Continued going obliquely down till 11° 36': at 12° 10' a little up without any change in light. & then continued falling till 1°. 50': at 2. 15' had risen a little. After 2°. 45' zig-zagged a little— After 4° 35' rose oblique rapidly— at 5°. 25 going to sleep, Asleep at 6° & then continued sinking, with one zig-zag till 10° 40' when observations ceased. It is clear that movements continue after leaf asleep Next morning (Oct 8th) at 6°. 45' asleep, but bristle above glass: at 8° 25' awake, & position shown by circle.