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



Plate X. 





Fig. 1.— elements of Fibrovascular Bundles of Apple. X 425. 



DRAWN BY BURTON J, HOWARD. 



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Fig. 2.— elements of Fibrovascular bundles of Pear. x 425 



DRAWN BY BURTON J, HOWARD. 



■ aco aAI31^ 



