Figs. 
19, 
20. 
21. 
22. 
23. 
ae 
115 
19 To 23.—Uleceration of the third type (ulcerative dermatitis, Veld sore?) 
Earlier and later gross lesions of ulceration of the third type. 
Showing cellular proliferation about blood vessel (from unbroken nodule) : 
the left side of the vessel wall is formed by the edge of the photograph 
Demonstrating character of cellular infiltration in the subcutaneous tissue 
(from unbroken nodule). 
Section of tissue demonstrating early lesion, and region on the edge of an 
ulceration, On the extreme right of the photograph may be distinguished 
a small area of degeneration in the Malpighian layer of the epidermis: 
in the center, the infiltration of this stratum may be recognized; while at 
the extreme left, the partial erosion and necrosis of the epidermis is 
apparent. 
