PJ.ATE 7^ 
A. —llie peach tree into which healthy plum buds were inserted June 1930, to 
serve m a control. Note the healthy growth of the peach stocky and oi one plum bud 
(indicated by the arrow). 
B. —^The Marianna plum tree into which buds from a rosetted peach seedling were 
inserted June 18, 1920. Note the rosetted shoot produced by one of the peadi buds. 
C —“The Marianpa pliun tree, shown in B, after another season's growth. Note the 
vigorous, healthy growth of the Marianna stock in contrast to the stunted gr(^th of the 
peach ^oot at a, with small rosettes at the tips of the branches. 
