CONTENTS. 



sativnm, tips of radicles cauterised transversely, and on their 

 upper and lower sides Phaseolus, cauterisation and grease on 

 the tips Gossypium Cucurbita, tips cauterised transversely, 

 and on their upper and lower sides Zea, tips cauterised Con- 

 cluding remarks and summary of chapter Advantages of the 

 sensibility to geotropism being localised in the tips of the 

 radicles Page 23-545 



CHAPTEE XII. 



SUMMABY AKD CONCLUDING REMARKS. 



Nature of the circum nutating movement History of a germinating 

 seed The radicle first protrudes and circunmutates Its tip 

 highly sensitive Emergence of the hypocotyl or of the epicotyl 

 from the ground under the form of an arch Its circumuutation 

 and that of the cotyledons The seedling throws up a leaf- 

 bearing stem The circumnutation of all the parts or organs 

 Modified circumnutation Epinasty and hyponasty Movements 

 of climbing plants Nyctitropic movements Movements excited 

 by light and gravitation Localised sensitiveness Resemblance 

 between the movements of plants and animals The tip of the 

 radicle acts like a brain .. 546-573 



INDEX ., ., 574-593 



ERRATA. 



Page 3, foot-note, for Mr. Vine's read Mr. Vines'. 

 452, line 7 from bottom, for minntes read minutes. 



