PLATE 5 



Camera lucida draivings of the cells 



EXPLANATION OF FIGURES 



12 Spindle-shaped mesenchyme cells associated with long radiating bands of 

 fibrin. Oval cells of a type similar to those growing in lower surface of the clot 

 are seen near the tissue. Early signs of degeneration are seen in the appearance 

 of the large and very refractile granules in many of the cells. Ten-day culture. 

 Drawn from the living cells. X300. 



13 A large multi-nuclear cell growing from the tissue into a dense clot. Five- 

 day culture. Drawn from the living cell. Tissue schematic. X350. 



14 Cells growing in a layer on the lower surface of the clot. Four-day culture. 

 Stained in haematoxylin and Congo-red. X725. 



