PLATE III 



SECTIONS OF BLOODVESSELS (Sobotta) 



FIG. I. Section of vein from an executed criminal (Zenker's solution; Weigert's elastic- 

 tissue stain ; alum-carmin), x 50. The elastic tissue is stained dark violet. 



A, adventitia ; _/, intima ; M, media ; Im, longitudinal muscle of the adventitia ; w, vasa 

 vasorum. 



FIG. 2. Section of a large branch of the internal spermatic artery, X 80. 



A, adventitia ; ei, elastic lamella of the intima ; en, endothelium ; J, intima ; M, media. 



FIG. 3. Section of a small artery, X 220. 



A, adventitia ; M, media ; en, endothelium ; ei, elastic lamella of the intima ; ee, elastic 

 lamella of the media. 



FIG. 4. Section of a very small artery. 



Lettering as in Fig. 3. 



