82 PROTOZOA AND DISEASE 



of repair. What is the origin of this network of cells ? I could 

 find no evidence that the new cells arose in this instance in any 

 way except by indirect division. The nuclei of the young branched 

 cells everywhere showed signs of activity, and many of them pre- 

 sented mitoses, as seen in Figs. 27 and 28. The new cells were 



362 i 



FIG. 27. PART OF THE TISSUE UNITING THE SEPARATED ENDS OF A TENDON 

 FORTY-EIGHT HOURS AFTER DIVISION. (This figure is composed of several 

 areas selected from a section, drawn to scale, x 1,000 diameters. From the 

 Author's 'Surgical Pathology and Principles, 5 1897.) 



i, A capillary of the tendon sheath containing red blood-cells: one of its endo- 

 thelial cells is undergoing subdivision ; 2, points between two lymphocytes, 

 one of which contains an ordinary multinuclear leucocyte, the other a red 

 corpuscle ; 3, indicates one of the fibroblasts which contains a leucocyte, a red 

 corpuscle, and a vacuole ; 4, 5 and 6, connective-tissue cells undergoing 

 mitosis, which is irregular in 6 ; 7, a lymphocyte. 



seen, as evidenced by the presence of mitotic figures, to arise from 

 the fibrous bundles of the tendon sheath, and from its prolongations 

 between the fibres of the tendon bundles. The latter did not 

 appear to take any active part in the process of repair. 



Examined on the fourth day, the newly formed tissue was found 

 to have the characters of fully formed granulation tissue i.e., new 



