[187]

1 1/2 mm was cut off on Oct. 5. 12° 15'

Oct 9th 7° 45— Of the 4. radicles of Bean left Horizontal with tips cut off. — 2 have repaired cap & punctum veg & both these are geotropic— 2 others horizontal & sickly & have not repaired point.

Of the 4 which were placed perpendicularly 1 dead—

2 have repaired punctum & 1 has not repaired punctum these now extended horizontally to see if Geotropism will act. —

[in margin:] (Tips reformed after 3 days 20 hrs)

(In old experiments Sept. 27th new tips & caps were found well formed after 6 days

(All this refers to repair of tips)

9° 45. Tips of Both slightly geotropic

10° 7°. 45 a m. tips distinctly geotropic.

[187v]

(a) (text). So it is according to Von Mohl

Von Mohl notice has remarked on some analogues cases in with Cardamine amara, geranium sylvaticum, myosotis & Salvia. On the other hand, as he further remarks, when a plant produces hermaphrodite flowers & male flowers, or those others with the female organs more or less aborted so that they have been converted into males, the corolla of the latter the corolla (with a few exceptions as is Acer) is not at all or only increased in size, or only exceptionally & in a slight degree, as in Acer.* (* Bot. Zeitung 1863 p. 326.) It was seems therefore im probable that the decreased size of the corolla in the foregoing above cases is due to a