58 



THE POPULAR SCIENCE MONTHLY. 



Of the small white mulberry growing on the grounds of the 

 Department of Agriculture at Washington, Mr. Sudworth says: 

 " The conditions are essentially the same as those noted in the 

 case of the linden, except that the mulberry is perhaps more 

 seriously injured, a considerable portion of the trunk having been 

 destroyed by decay. The adventitious roots observed spring 

 from the free border of a longitudinal crack where the trunk 

 forks, the edges of the wound having been healed for some time, 

 while the subsequent decomposition of the inner layers of wood 

 formed a quantity of mold, which, lying in contact with the 



.Fig. 1. — Portion of Trunk of Linden; 

 growing in Boston, Mass. (Sketched 

 by the writer.) From the Bulletin of 

 the Torrey Botanical Club. 



Fig. 2. — Portion of Trunk of Norway Maple, 

 growing near state college, pennsylvania. 

 (Sketched by William A. Buckhout. ) From 

 the Bulletin of the Torrey Botanical Club. 



healed borders, seems to have induced the growth of adventitious 

 roots from one side into the decayed mass." * 



To this list may now be added another mulberry (Fig. 3) ob- 

 served by the writer during the past winter in Thomasville, Ga. 

 Its owner, Dr. T. S. Hopkins, says of it: "I have had an intimate 

 acquaintance with this grand old tree for thirty years. I do not 

 know how old it was when I first knew it. Some fifteen years 

 ago it was uprooted by a storm. I carefully amputated its limbs 

 and re-erected its body. It lived and improved, and to-day fur- 

 nishes as much shade as it did before its fall and the surgical op- 

 eration made necessary by it." In point of size, extent of decay, 



* In a letter dated July 26, 1892, Prof. B. E. Fernow, Chief of the Forestry Division at 

 AVashington, informs me that while in Harrisburg, Pennsylvania, he saw a most interesting 

 and well-developed example of self-rooting capacity in a paper mulberry {Broussondtia 

 papyrifera). The tree stands opposite to No. 31 South Front Street in that city. 



