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Oct. 11th 1878

Lotus Jacobæus

a seedling only about 24° old had short & thin filament fixed to one Cot. but I forgot to secure Hypocotyl — traced on vertical glass.—

first First dot at 8° 30, fell it till 11° 30' & end of filament then touched sand.— At 7° 14' had risen & so continued so that by 10° 50' P.m had risen greatly. Rose a little more during night & by 6° 50' a.m. on 12th— then fell a little— I now secured Hypocotyl to fine pin. After which never moved much; yet circumnutated minutely about nearly same point until morning of 13th— I know not whether the first considerable & even great movement observed was due to circumnutation of Hypocotyl— or to Cotyledons becoming motionless, almost motionless, for want of light, as seedlings only feebly illuminated from above. — I suspect latter cause.— (Used)

Oct 14th to morning morning of 15: a seedling about 24° old had hypocotyl fixed to thin pin with short very thin glass filament affixed to one Cot. [sketch] movement traced on vertical glass illuminated from above.— distance about 7 inches from tip of Cot to vertical Glass— — The tracing rose, owing to growth of uppermost part of hypocotyl; so later movement may have been partly due to circumnutation of hypocotyl, but as the Cot. circumnutated from the first within very small range, no doubt. Cot. circumnutated: whole tracing during 27° was only .85 in length & so cd not be copied. (compare with tracing & magnification of former Tracing) & there was no sign whatever of an evening & nocturnal rise or of a morning sinking; so agrees with tracing of Oct. 11th. after hypocotyl was secured & agrees with general conclusion that Cots. do not sleep at first.