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Circumnutation of Horse-chesnut Radicle on smoked glasses

(1) angle of glass 20° from vertical — diameter of root .23 of inch— length 1.9 of inch

(2) diameter .25 of inch— glass— 25° from vertical

(3) same inclination & same size

(4) Aesculu. 25°. base of root .25 in diameter diameter

Another Spanish Chesnut quite straight & short track not Kept

[174v]

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in the other half many of the[text excised]

self-fertilised. In 4 four not [text excised]

seeds derived from a cross with [text excised]

compared with self-fertilised, [text excised]

In later self-fertilised generat[text excised]

in half the cases the crossed see[text excised]

the self-fertilised seeds germina[text excised]

seedlings of Mimulus rasied [text excised]

extremely [inferior in all respects]

seedlings, & in the case of Esch [text excised]

[few words illeg] [text excised]

relative weight of the two lots of

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[Cross and self fertilisation, pp. 354-55: "Neglecting one case in which the two lots germinated simultaneously, in ten cases or exactly one-half many of the self-fertilised seeds germinated before the crossed, and in the other half many of the crossed before the self-fertilised. In four out of these twenty cases, seeds derived from a cross with a fresh stock were compared with self-fertilised seeds from one of the later self-fertilised generations; and here again in half the cases the crossed seeds, and in the other half the self-fertilised seeds, germinated first. Yet the seedlings of Mimulus raised from such self-fertilised seeds were inferior in all respects to the crossed seedlings, and in the case of Eschscholtzia they were inferior in fertility. Unfortunately the relative weight of the two lots of seeds was ascertained in only a few instances in which their germination was observed; but with Ipomoea and I believe with some of the other species, the relative lightness of the self-fertilised seeds apparently determined their early germination, probably owing to the smaller mass being favourable to the more rapid completion of the chemical and morphological changes necessary for germination."]