140r

[Draft of Cross fertilisation, pp. 19-20, fair copy.]

(52)

Chapter D

than counter balanced by the inherent superior constitutional vigour of crossed seedlings. (With respect to the rate of germination of seeds from crossed nad self fertilised flowers I made many observations, but could not arrive at any definite result. In most cases crossed seeds, especially those fromm a cross with a fresh stock, germinated before the self-fertilised. Nevertheless on several occasions it appeared tolerably clear that small light seeds germinated before bulkier ones. Thus some extremely small seeds from self fertilised and diseased plants of Iphomoea grew at first with extraordinary precosity & vigour, though ultimately conquered by their crossed competition. [excised]

that small and light seeds germinate  [excised]

of matter having to undergo chemica [excised]

on the same principle that the small [excised]

developed before the larger ones.