Ash-wood with Reference to Water -conductivity. 
259 
Method. 
The data as to the size, proportion, and distribution of the water-con- 
ducting elements were obtained in substantially the same manner as that 
described for the Hazel . 1 In many of the smaller sections it was found 
practicable to obtain the total number of the vessels by actual counting in 
the whole or a large part of the section. 
Fig. 5. 
Results. 
The figures are presented in graphical form, a set of six curves being 
given for each shoot. These lines are lettered to correspond with those given 
for the Hazel shoots, and the vertical scales are the same. It has been 
found convenient, however, to double the horizontal scale, in which an equal 
interval was taken for each internode regardless of its length ; for in the 
1 Holmes, M. G. : loe. cit. 
