256 
Holmes . — Observations on the Anatomy of 
large axillary buds are placed well above the insertion of the leaf, and often 
below the large bud there is a much smaller supernumerary one. In the 
Ash shoot the terminal bud is generally present, but frequently it does not 
develop farther, and in the next season the strongest shoots grow out from 
the lateral buds near the apex. The 
apices of specimens A 3, A 4, and 
A 6 are compared in Fig. 3 ; it was 
found that the apical buds of A 3 
and A 4, the shorter shoots, were 
strong, while that of A 6, the longer 
shoot, was weaker. In specimen 
A 8 is seen the result of the abortion 
of the terminal bud. That formed 
in 1916 failed to develop, and in 
1917 six shoots grew out from 
lateral buds, getting less vigorous 
from the top downwards ; a similar 
condition is repeated in the develop- 
ment of the buds of A 8 a, the 
strongest of these shoots, at the 
opening of the season of 1918. In 
the Ash a number of the shoots 
which do develop are not perma- 
nent ; such weak shoots as A 8 e are 
likely to be suppressed very soon. 
In A8£ the apex was dying back 
by the failure of the apical and also 
the lateral buds at the end. 
Anatomy. 
Fig. 1. The numbers refer to the internodes, 
reckoned from the base of each shoot re- 
spectively. The statistics of shoots A 8 a, A 8 b, 
A 8 e, are given in Fig. 7. 
There is a complete cylinder of wood 
these shoots, widest in A 3, internode 
In the young and vigorous stool 
shoots there is a wide pith, especially 
in the middle part of the shoot. At 
the base, the wood cylinder is par- 
ticularly wide between the cambium 
and the pith, and it decreases in width 
towards the apex relatively more than 
does either the pith or the cortex, 
in the terminal internode of each of 
11, in the sense indicated above, and 
very narrow in A 6, internode 15. In A 8 the cambial activity had been 
resumed at the time that the specimen was cut, so that some new wood of 
the 3918 season was present ; but this new spring wood was not taken into 
