[123]

(give woodcut.)

Aug 31. /79/

The power of reversing reversing curvature when pot slewed round shows that overhanging weight can do little in [causing] curvature of Cots of Phalaris.

So again splinter of glass in upper part which are than kept straight (& yet, I believe whole cot. bend) shows how unimportant weight is.—

What wd be effect of placing pot before bright where light & geotropic cd. act [sketch]

(over)

[123v]

When tin caps or glass pipes were put on & cots become slightly curved, then if weight of any consequence— these wd have become more curved than any, bearing in mind that basal part exposed to light—

[124]

Curvature in plants a little above or beneath 1 inch high to from .15 to .2 above ground, & with plants 1/2 inch high extends down to ground

(over)