286 The Botanical Gazette. 
not crush at the point of yielding. The scions used in th 
work were in all cases vigorous growing young tips. In young E 
plants the stocks were cut close to the ground, in older plants 
ful attention revive permanently. 
Accounts were kept of each graft and when it arrived® 
cell union could be found in a single graft. 
transverse sections were made of most grafts, bap 
tudinal section seldom showed anything in additior oa 
shown by transverse sections. Camera lucida oe 
made of all sections of importance, and in connect bi 
the slides used for study. A number of these drawings | 
been selected to illustrate this article. a 
lel tomat® 
Graft of tomato on tomato.—Twolateral and ee slices 
* branches belonging to separate plants had ey thee | 
each about three-fifths of an inch long, pees: a toge 
jacent sides; these cut surfaces were bound rr abot 
with: raffia so that similar tissues a After 
weeks the graft was sectioned for study. 
showed ie Pe of union marked by a ragged. oe 
which passed with but one interruption ig f the two 
stem. In longitudinal section this junction aie 1 co 
bers was marked by rows of small irregular a i 
with here and there the intervention ye alls which 
wall (fig. 1). The sections showed that peer nmediatel 
been ‘injured in grafting had died, while “o forming 
beneath them were stimulated to a vig a its 4 
meristematic tissue in each member, W me cells into 
pushed the broken walls of the dead boun pare agm 
forming between the two members of the ae 
