22 SHADE TKEES. 



PLATE II. 

 TYPES OF TREE GUARDS AXD GRATINGS. 



All but cut G from photographs by Dr. W. A. Murrill. of the New 

 York Botanic Gardens. 



A. Tree Guard and Bench. London. 



B. Young Sycamore with Pole Support. Wire Guard and Grat- 

 ing. Paris. The enlarged bases of the guards in cuts B. H. 

 I., and the sheet iron on the guard in cut F, are to protect 

 the trees from dogs. 



C. The Standard Guard used in Washington, D. C. This is 

 strongly made of wood, is firmly fastened to four diagonal 

 stakes driven into the ground, and, by leather bands at the 

 top, supports the tree as well as protects it. These guards 

 are unsightly and harbor insects, but they are always re- 

 moved after the tree is well established. 



D. A Simple Guard of Wire Netting. Washington, D. C. This, 

 and all kinds of metal guards, are now being discarded and 

 the older trees left to the protection afforded by stringent 

 police regulations and systematic inspection. 



E. A Guard of Pine Poles. Berlin. Not so cheap here as in 

 Germany and otherwise not desirable. 



F. Wire Guard with Sheet-Iron Base to protect the tree from 

 dogs. Frankfort, a. m. 



G. A Neat Iron Guard but too Light to last Long. Trenton, N. 

 J. Contrast small growing space with spaces shown in other 

 pictures. 



H. Young Tree with Wooden Support, Iron Guard and Grating. 



Berlin. 



I. Older Tree with Guard and Grating. Paris. Contrast large 



grating in concrete pavement with smaller grating in broken 

 stone pavement, cut H. 



