[107]

Cotyledon umbilicus Tracing A

[108]

Fig 119

Cotyledon umbilicus fig. A

(same scale 7 sets of lettering)

[109]

Cotyledon umbilicus circumnutation of stolon

Cotyledon umbilicus: circumnutation of stolon traced on vertical glass from 11° 15' a.m on Aug. 25th to 11° a.m 27th. Plant illuminated from above. On the 26th & The terminal internode was only .25 of inch in length; the second or penultimate one 2.25 of an inch ; & morning of 27th only a few dots were made, so that the circumnutation during this latter period appears much is represented as more simple than it really was. & the third 3 inches in length: the stolon was supported at the distance of 1 inch from the third node, leaving 4 1/2 inches unsupported.

Apex of stolon stood at the distance of 5.75 of an inch from the vertical glass.) Tracing not greatly a but It is was not possible to state ascertain how much the tracing is was magnified, as it was is not known, how great a length of the terminal portion of the stolon circumnutated. The

[109v]

Introduction

by chance a dozen or score of men belonging to two nations and measured them, it would be I presume be very rash to form any judgement on the difference from such small numbers in their average heights. But the case is somewhat different with the any crossed and self-fertilised plants as they were of exactly the same age, were subjected from first to last of the same conditions, and were descended from the same parents. When only from two to six pairs of plants were measured, the results are manifestly of little or no value, except in so far as they confirm and are confirmed by experiments made on a larger scale with other species. I will now give the report on the eight tables of measurements, which Mr. Galton has had the great kindness to draw up for me

(To the Compositors)

(Here insert Mr. Galton's Report in the smaller of the two types which are used)