ILLUSTRATIONS 



Page. 

 Plate I. Old trees of the white mulberry (Morus alba) in the grounds of 



the United States Department of Agriculture Frontispiece. 



II. Branch of the white mulberry (Morus alba), with large un- 

 divided leaves 20 



III. Branch of the white mulberry (Morus alba), with divided leaves, 20 



IV. Branch of a seedling Russian mulberry (Morus alba), variety 



tatarica 20 



V. Summer cuttings of white mulberry (Morus alba), with leaves 



shortened 20 



VI. Branch of the white mulberry (Morus alba), variety venosa 20 



VII. The Osage orange and the paper mulberry. Fig. 1. — Leaves, 

 fruit and bark of the Osage orange (Toxylon pomiferum). 

 Fig. 2. — The paper mulberry (Broussonetia papyrifera) 20 



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