24 



23 22 21 



25 



I 30 



mat 



- 



9 10 





FIG. 75. ^SUCCESSIVE TRANSVERSE SECTIONS THROI (;n THE LEAK-BASE AND NODE OF A CULM, 

 illustrating the course of the bundles through the node ( 135). 



II., -4 mm. Ixrlow 1. ; III., -4 mm. below II. ; IV., 14 mm. Ixrlow III. ; V., -S mm. below IV. ; 



VI., i~6 mm. below \'. 



