[87]

Camellia Japonica

Circumnutation of younger 2 leaf

Jun Bush a yard high: A youngish leaf, sloping at an [3 words illeg]which with its short petiole was 2 3/4 of inch long, on a side branch of tall bush had [sketch] filament attached under skylight to mid rib. The leaf was sloped round at an 9 40' be; Near its apex Tem about 16° to 16 1/2. C.

Apex of leaf 12 inches in oblique line from vertical glass.

On 13th of June from 10° 20' a.m to 9° P.m. changed its course 7 times, either greatly or completely — in course of 11 1/2 h but distance travelled small, though I hardly expected without mark [illeg] & more magnification to see any movement, & as it was as it leave was thick & very rigid & with a very short petiole short.— more movement cd hardly have been [illeg], but the apex [3 words illeg]

On 14th another tracing, course in general appearance very similar; changed its day course 6 times on the next day a second tracing was made whose result the first & to be given either greatly or completely in the between 6° 40' am & & 9° P.m. There can be no doubt, over circumnutation of the leaf though only to slight degree. on to very small

N.B leaf declined 40° below Horizon [diagram]

Draw on scale & see what movement is —

On the next day the apex movement of the apex was very similar but its course did not change quite so often & was again traced during 26h 20m. It is here given. (Fig. 9) & shows that the leaf circumnutate

[87v]

The movement seem periodical, for on both day the leaf circumnutated in the morning forenoon, fell in the afternoon till until on one the first day between 3° & 4° & on the 2d day till 6°, & then rose; falling again in the course of the night.

[Diagram]