ye ADHESION, 
were thus transposed, while the upper portions or 
crowns were unaffected: the root of one, naturally 

Fig. 22.—Adhesion of the branches of two elms. ‘Gard. Chron..,’ 
1849, p. 421. 
weak, became distended and enlarged by the abundant 
matter poured into it by its new crown; and in like 
manner the root of the other, naturally vigorous, was 
starved by insufficient food derived from the new crown, 
and became diminutive and shrunken (see Synophty). 
The explanation of the fact that the stumps of felled 
fir trees occasionally continue to grow, and to deposit 
fresh zones of wood over the stump{M@epends on similar 
facts. In Abies pectinata, says Goeppert,’ the roots 
of different individuals frequently unite; hence if one 
be cut down, its stump may continue to live, being 
supplied with nourishment from the adjacent trees to 
which it is adherent by means of its roots. 
! «Ann. Se. Nat.,’ t. xix, 1843, p. 141, tab. iv. 
