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April 23d. 1879.    Bean Radicle— touched only once & not rubbed

8º. 25' a.m    roots dry, not washed with water, about 4 mm. from apex

9º immersed in water on one side— avoiding Sachs curvature—

(1) 4º 30' P.m hardly perceptibly curved to Black mark (24th. 7º 30 a.m. about 30º from perpendicular

(2) 4º 30' like (1) (24th 7º 30. about 25º from perpendicular

(3) 4º 30 like (1) (24th 7º 30. about 40º from perp.

(4) 4º 30' curved at angle of 45º to Black spot with lower basal part of radicle (24th 7º 30' about 40º from Perp

(5) 4º 30 curved exactly as (4) (but touched on opposite side) (24th 7º 30' at right angles

(6) 4º 30 curved exactly as (4) (24th 7º 30 at right angles

(7) long —radicle apex also touched rectangularly 4º 30' curved to black side 22º from the perpendicular: The apex is not blackened, I must have failed in touching it. (24th 7º 30 is slightly black ends but not the apex & bent at about 20º from perpendicular

(8) apex also touched rectangular 4º— 30' rectangularly curved to black mark— Black touch on apex as in last paper seems preponderant over the mark at 4 mm from apex. (24th 7º 30' a.m at right angles & directly from blackened apex.—

(25th 8º a.m Radicles in water have now grown greatly, but the Kinck not quite removed in any & this shows that locally so much injured increased growth at this spot cd. not straighten the radicle.—)

69

Beans

April 25 a long straight radicle with bit of sand-paper fixed at about 10º am to tip; at 5º 15' P.m curved from card to length — measured   along middle of .4 of inch.  (Used)

a second one curved from card for only .25 of inch.

I ought to have measured length of radicle first —very important to know whether curvature, as I believe transmitted backward

These 2 cases may be added to general list of cases of radicles curving from card