FORSYTH ON FIIUIT AND FOREST TREES. 197 



which a dog had torn off the bark from one half of 

 the circumference of the stem, entirely renew the 

 lost bark in one season, when immediately clayed 

 over. Resins, oils, bitumen, paints and composts 

 without number, have been used with more or less 

 success, depending upon the period of the year, wea- 

 ther, kind of tree, individual health, and other cir- 

 cumstances ; but these salves should, as in flesh- 

 wound salves, be considered only as protections, or 

 slightly auxiliary to the restorative energy of na- 

 ture, not as cures. 



