[40]

Bean Sensitiveness of radicle to pressures

(Ap. 1st 8º 30' a.m. rubbed for 1' with little round stick tips of 2 radicles exteriorly, at 4º 30' not at all bent. N.B. Drosera differently affected by pressure & touches.─)

[41]

Ap. 1. fix turned bean with long straight radicle & fixed with gum which kept damp at 9º 30' a.m small bit of card to one side of apex: at 4º 30' considerably bent from card for some distance down radicle i.e side nearest opposite to card must have grown slower & thus become concave reverse of petioles of climbing plants & tendrils.

[in margin:] This may be added to great list

Curvature extends for .27 down radicle far below bit of card.) 8º 30' P.m tip at right angles to basal part!

Ap. 2' 8º a.m. no more curved tip grown beyond card— Distal portion for a length of .36 at right angles to basal part.— I think growth completed.)

(Used)

versus Sachs

(Apr 1st 2 Beans were placed on slip of thick wood & radicles descended straight.

Ap 2d 6 more with bits of cards all growing out & down. straight = (+2) = 10) + 2 growing straight down)