[139]

Flower of Drosera

Action of Water compared with Touch.

[139v]

(466 (3

Chapter VII

or with plants of the same old stock intercrossed from one or more during several generations. The relative fertility of the plants in this several & the other Tables will be more fully considered in another a future chapter.)

[Comparison] → (Here insert tables, A, B, C.)

(In these three tables the measurements of 57 species, belonging to 52 genera and to 30 great natural families, are given. The species are natives of wildly widely separated parts of the world. The number of crossed plants, including those crossed by the same & a fresh stock and those crossed when measured amounts to 1101; and of self-fertilised plants (including some few in Table C intercrossed derived from a cross between plants of the same old stock) in table C amounts to 1076. This Their growth was observed from the generations germination of the seeds generally on bare damp sand to maturity; & most of them being were measured twice and some thrice. The various precautions taken in the germination of the seends and during the subsequent growth of the seedling to ensure the prevent either lot being unduly favoured, have been described in the introductory chapter. Bearing all these circumstances in mind, it may be admitted that we have a fair basis for judging of the comparative effects of cross-fertilisation and of self-fertilisation on the growth of the offspring)