336 BOTANICAL GAZETTE [tay 
TABLE III. 
Median longitudinal section of root of Zea excited geotropically three 
hours and curved through 60° 
MEASUREMENTS OF WIDTH OF CELLS OF CONVEX SIDE. 
Apical Basal Average 
(Ep) 12 13 14 r2 12 12 13 10 10 1%. 
(2) 6 6 : 9 8 8 7 10 7 7°5 
ys eZ 7 5 8 7 7 4 4 5 6. 
co ame i 5 6 7 5 9 6 8 7. 
G)-- 7 7 4 3 5 7 5 5 8 7: 
(6) 7 7 5 4 6 6 5 7 9 6. 
(7) to II 9 6 8 5 8 10 10 8.5 
ms ee : 7 6 8 5 6 6.5 
Average width of cells, - - - - - - 7:56 
‘ 
MEASUREMENTS OF WIDTH OF CELLS OF CONCAVE SIDE. 
Basal Average 
(Ep) 12 II 12 II 10 I! II il - Il. 
(2) 8 9 6 7 8 12 12 12 ; 9. 
D=% 8 8 ap 9 5 5 . 9:5 
(4) 7 6 5 7 4 9 Io 7 Si 7: 
(5) 5 5 4 3 4 8 8 er 5.5 
© 6 7 8 8 7 6 7 8 : 7 
(7) to to 9 9 9 fe) 8 7 2% 9. 
~ . § Coe ie yet 8 ‘ae oe 9- 
Average width of cells, - = . = ws - 8.25 
TABLE IV. 
Table showing comparisons of average lengths of cells of convex and 
concave sides of root of Zea mais, geotropically excited for three hours 
through 60°. The rows of cells are numbered from the epidermis 
ied the center of the root. 
| MEDIAN LONGITUDINAL SECTION. 
Ep ; 2 b 3 | + ; 5 6 7 3 | 9 | 10 
romeo ee cs ane ee i ee ee a 
| = >a wm we | ee a 
