46 ART. 6. Y. YEXDO : 



CONTENTS. 



PAGE 



I. Introduction 1 



n. Method of injection 2 



m. Experiments Avith several injection solutions 3 



IV. Injection experiments with several plant organs 4 



Y. Injection into parenchymatous tissue 5 



yi. Experiments in moist chamber G 



VII. Experiments on some deciduous trees in winter and early spring. 7 



Vm. Experiments on some thallophytes . . 7 



IX. Discussion of the results . . . . 9 



1. Relation between transpiration and conduction of injected 



solution 9 



2 Upward conduction and downward conduction 11 



3. Transverse conduction 14 



4. Speed of conduction of injected solutions 15 



5. Conducting path of injected solutions 16 



6. Injection method as a means for tracing the course of a 

 vascular bundle 17 



X. Summary 18 



XI. Experimental data 20 



Literature 44 



Published May 15th, 1917. 



