CONTENTS 



CHAPTER PAOE 



I. GEHXUMi PbCNCIFLEB ... ... ... ... 1 



II. The Pbinciple of Ndmbee ... ... ... 7 



III. The Pbinoiplb of NxnHBBE — Continued ... ... 25 



IV. The Pkinciplb of Aeeangement ... ... 39 



V. The PBOfciPLE of Cohesion ... ... ... 48 



VL The Pbinoiplb or Cohesion— Contt»»«d ... 54 



VIL The Pbinciple of Cohesion— ConWnued ... ... 62 



VIII. The Pbinoiplb of Adhesion ... ... ... 78 



IX. The Cause of Unions ... ... ... ... 84 



X. The Eeceptacular Tube ... ... ... 89 



XI. The Fobms of Flobal Obsans ... ... ... lOl 



XII. The Obigin of " Ztgomoephism " ... ... H6 



Xin. The Effects of Stbadjs on Stsuctdbes .., ... 123 



XIV. AcQuiBED Eegulabitt and "Pelobia" ... 128 



XV. The Obigin of Floeal Appendages ... ... 133 



XVL Secbetive Tissues ... ... ... ... 140 



XVIZ Sensititeness and Iebitabilitt of Plant Obganb ... 151 



XVIII. Obigin of Conducting Tissues ... ... 164 



