143 MODIFIED CIRCUMNUTATION. CHAP. Via 



have watched for a fitting opportunity and to have 

 traced the movement of the leaves whilst they were 

 fully exposed to the sunshine, we did not ascertain 

 whether paraheliotropism always consisted of modi- 

 fied circumnutation ; but this certainly was the case 

 with the Averrhoa, and probably with the other species, 

 63 their leaves were continually circumrwtatiTig 1 . 



