[146]

An attempt to calculate comparative rate of upwards & downward movement in day-time oscillation of Sleeping plants.

Oxalis acetosella— average of 2 upwards rises 48' & 3 downwards only 37'—quicker together of about equal distance: lateral illumination.

Porlieria upwards 1°. 15'— downwards 3°. 35' so slower about same distance illuminated by skylight.

Arachis upwards 1°.15'— downwards 3°.35 so slower same distance in middle of day — skylight.

Trifolium resupinatum upwards 3°— downwards 1°. 50', but this shorter same distance down wd have taken about 2°. 15'. quicker — skylight.

Tr. subterraneum upward 1°.30' down 2° slower— obliquely illuminated.

Erythrina crista-galli — in the diurnal oscillation, the falling sinking movement quicker quicker than the rising one.— as if violently pulled down & checked rising suddenly checked.

see note for mention of [illeg] (see notes)

[few words illeg] 554

[calculations] I might put this in

movement perhaps too small ellipse part of greater one