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Holmes.—A Study in the Anatomy of 
of the wood at different levels in the shoot. In all four cases it rises from 
the base upwards for the major part of the stem, and then falls sharply at 
the end ; the maximum percentage is reached at some internode near 
the apex, and in three cases there is a rapid rise before the maximum, 
as well as a rapid fall after. In H7 the special preponderance of fibres at 
the base is reflected in the specially low specific conductivity in the lowest 
internode cut. The low specific conductivity in the final internodes is 
to be connected, not with a high proportion of fibres, but with the higher 
proportion of living cells and the small size of the vessels ; when the cavity 
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