The Gardeners' chronicle : a weekly illustrated journal of horticulture and allied subjects (1874)
London : (Gardeners Chronicle) · leaf 302
rcum-nutation may be exemplified by an illustrationwhich I have sometimes made use of in lecturingon this point. A skilful bicycle-rider runs verystraight; the deviations from the desired courseare comparatively small; whereas a beginner wobbles or deviates much. But the deviationsare of the same… … FlG 35.—VIEW IN DALKEITH GARDEN, WITH GARDENERS HOUSE IN THE DISTANCE. (SEE P. 278 ) which may be briefly expressed thus :—(1) Howdoes the plant recognise the vertical line ; how doesit know where the centre of the earth is? (2) Inwhat way are the curvatures which bring it into thevertical line…