104 THE HEALING OF WOUNDS 



them. The tests were made on vigorous mature 

 apple trees (Greenings, Baldwins and Kings). 

 Branches were cut every month in the year, and 

 at various lengths. Dressings were made of 

 tar, linseed oil, grafting wax, white lead paint 

 and tallow. The results were studied in the 

 winter of 1895-6. It is unnecessary to re- 

 count the full experiment at this place, but 

 wounds representing typical average conditions 

 are shown in Figs. 89-92, and these we may 

 profitably examine. Unless otherwise stated, 

 these wounds are selected from two very sim- 

 ilar Greening trees standing side by side. One 

 tree is designated (1) and the other (2). 



Fig. 89. (1) cut Oct. 31, 1891. 



Fig. 90. b (1) cut Nov. 18, 1891. 



bb (1) cut Dec. 19, 1891, wood frozen. 



bbb (2) cut Feb. 23, 1892. 



c (1) cut Oct. 12, 1891. 



cc (1) cut May, 1892. 



ccc (1) cut Nov. 18, 1891. 



d (2) cut Oct., 1892. 



dd (2) cut Mar. 25, 1892. 



ddd (2) cut Feb. 1892. 



Fig. 91. e (2) cut June 20, 1892. 



f (1) cut Oct. 12, 1891. 



g (2) cut July 27, 1892. 



h (2) cut Sept. 15, 1892. 



i (2) cut Feb. 23, 1892. 



j (2) cut July 27, 1892. . 



