1897 | THE CURVATURE OF ROOTS 343 
MEASUREMENTS OF LENGTH OF CELLS OF CONVEX SIDE—cont da. 
Ae ee ke ee mia ee 
Apical Basal Average 
(3) 100 80 90 125 119 go 97.5 
(4) 80 85 85 95 75 80 83.3 
(5) 54 42 52 50 50 45 48.8 
(6) 60 65 65 70 55 70 64.1 
(7) 54 60 65 7 80 75 68.1 
i (8) 60 80 50 60 65 75 65. 
‘ (9) 65 45 60 65 70 60 
r Average length of cells, = - - ° 71.99 
MEASUREMENTS OF LENGTH OF CELLS OF CONCAVE SIDE. 
Apical Basal Average 
UO) Baw aia : bead a a cins 
(2) : Phila Ainsley ee a ; 
(3) 50 28 30 52 42 50 45 55 44 
(4) a Se. ae ee ee ae 50 -) 38S 
oe a oe ie eee ee mee ee Se a 
(6) 30 40 25 52 52 40 45 S : 38.62 
(7) ae aS 35 32 42 to... f me 40.85 
OG 4 30 ff 4s ee eS ee 
a ey as eo eee eee. ee eee es, s 
Average length of cells, - - = - i 45- 
MEASUREMENTS OF WIDTH OF CELLS OF CONVEX SIDE. 
i Basal Average 
ee ee eee Be ad eee ay 
2) oe 7 6 8 8 8 6 ce pe 
oF 7 6 9 6 6 8 7 1 
eee 6 6 7 ree eee 7.12 
(7) 8 8 9 - Pe 'd 9 8.5 
oe Fs 9 - 8 eta 7 7.89 
63g 8 ee ee ae 
(10) Io 2 ; 10 9 ro Ir = 10.430 
(yon re ee ee oe = 12 
cee a4 of cells, - e “ 8.53 
: ‘MEASUREMENTS OF WIDTH OF CELLS OF CONCAVE SIDE. 
Apical Basal 
