[113]

Cotyledon umbilicus Tracing B

Fig 120.

2/3 scale copy 8 sets of lettering

[113v]

Cotyledon circumnutation of stolon (shorter portion free)

(Cotyledon umbilicus: circumnutate of a second another stolon, with only 2 inches of terminal portion left unsupported; traced on vertical glass from 9˚10' a.m August 25 to 11˚ on 27th.

Tracing Apex of stolon close to glass, so that figure but little magnified & here reduced to 2/3 in copy given.) of natural size.

[114]

42

Introduction

seeds from the flowers with very little pollen weighed 79.20 grains. Both lots of seeds having been placed on damp sand presented no difference in their rate of germination. We may therefore conclude that by my experiments were not affected by a little more or less pollen having been used: a sufficiency having been employed in all cases.) a, see back of page

A long series of experiments will first afterwards be appended, showing in a condensed form the relative heights, weights and fertility of the offspring of the several various crossed and self-fertilised species. Another Table exhibits the striking results of fertilising with pollen from a distinct stock, plants which during several generations have either either been self-fertilised or have been crossed with plants kept all the time under closely similar conditions, with pollen taken from plants of a distinct stock & which have been exposed to different conditions. In the concluding chapters various connected related points & subjects questions of general interest will be discussed.)