[120]

Sept 5

Tropaeolum majus Heliotropism of first inclined already a little pointed from light [sketch]

[data not transcribed]

(Used)

(Used)

[120v]

20

Introduction

discussed. In some few cases of spontaneously self-fertile species the flowers were allowed to fertilise themselves under the net; and in still fewer cases uncovered plants were allowed to be freely crossed by the insects which incessantly visited them. There are some great advantages and some disadvantages in my having occasionally diversified the varied my method of proceeding; which but when this occurred, it is always specified so stated under the head of each species.

Care was taken that the seed was thoroughly ripened before being gathered. Afterwards the crossed and self-fertilised seeds were in most cases placed on damp sand on opposite

[in margin:] Specimen page

[Cross and self fertilisation, p. 11: "But this and some other sources of error will presently be discussed. In some few cases of spontaneously self-fertile species, the flowers were allowed to fertilise themselves under the net; and in still fewer cases uncovered plants were allowed to be freely crossed by the insects which incessantly visited them. There are some great advantages and some disadvantages in my having occasionally varied my method of proceeding; but when there was any difference in the treatment, it is always so stated under the head of each species.
Care was taken that the seeds were thoroughly ripened before being gathered. Afterwards the crossed and self-fertilised seeds were in most cases placed on damp sand on opposite sides of a glass tumbler covered by a glass plate, with a partition between the two lots; and the glass was placed on the chimney-piece in a warm room."]