Bui. 66, Bureau of Chemistry, U. S. Dept. Agr. 



PLATE VI. 



. 



GRAPE. 



QUINCE. 



PEAR. 



PEACH. 



PLUM - APR.COT. 



FIG. 1. FRUIT FIBROVASCULAR BUNDLES, x 2. 





FIG. 2. FIBROVASCULAR BUNDLES OF APPLE, x 75. 



Photographs by IJurtoii .1. Ilounnl. 



