(1A

Travellers' Joy. Clematis vitalba.

July 26th — I see that long drawn up thin culm of grass suffices to cause bend — & in more open place culm & even side branchlets of Briza— A trailing plant of Galium & soft leaf of a grass. — Convolutions most complex — side-peduncle will often curl round — The curled part thicker & often redder owing to check of sap. — Peduncle of a young leaf, 1/4 of full breadth acted on: lateral & main peduncle of young leaf (with not one of 5 leaflets unfolded) on acted on.— I see no reason to believe old leafs ever acted on.— Thickening agrees with growth— Growth of peduncle, often pushes leaf away before finally clasped & so many leaves uselessly convoluted.

Perhaps threads tied round stem causes no movement, because acted on each side.—

In Sand

(2A

walk, some young leaves affected slightly by oblique thread across base tied 3 days.

July 28 I found young leaves (& only young) lately clasping soft young leaf of maple — a loose crumpled decayed thin culm of grass — & two of the side peduncle of Briza, which on comparison were only as thick as a human hair!

A moderately thick cotton thread tied to end of peduncle of leaf & then folded in & out, has conspicuously acted on a leaf, after about 10 days.—

In cold frame; I bent twig so as to press both sides of young peduncle, but it produced after 5 days only slight effect on one side; I then took away double peg & put thin one on one side; & 48 it produced decided effect; in 24° more conspicuous effect.—

I put thin stick on one side of a peduncle & it produced shred of effect, in 48°; but for several days produced no more effect—