896 
PROFESSOR W. C. WILLIAMSON AND DR. D. H. SCOTT ON THE 
TABLES and Photographs from Medullary Casts. 
Specimen A. 
Column IV. 
Column I. Vv eee at f Cir aa ae ee Number of vascular 
Number of internode. en ne wes ® ach pies nter- | bundles in circumference 
internode. node. st iaieonade: 
7 Imperfect 43 
6 4-1 centims. 39 
5 18, 31 
4 13 ¥ 22 
3 1:0 centim. 16 
2 0°4 3 11 
1 035 5, Not distinct 
Proto-medulla jalmost destroyed. 
See Photograph A, Plate 86. 
Specimen B. 
Column II. Column III Column IV. 
Column I. : ‘: e Numb f lar 
é Vertical 1 h ‘ is umber or vascular 
Number of internode. ee of herent of inter bundles in circumference 
; of internode. 
7 3:0 centims. 8:0 centims. 61 
6 2:0 5 8:0 re 55 
5 15 A 85 3 49 
4 it ” 86 ” 45 
3 1:4 e 81 = 46 
2 1:0 centim 62, 35 
1 0°65 ” 50 ” 27 
Basal portion* 0°70 
See Photograph B, Plate 86. 
* Upper half with ill-defined traces of bundles; lower half proto-medulla of branch, 
