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SHINICHI MATSUMOTO 



b. Silk fiber as support. Other experiments were made, using 

 silk fibers. In these a nmnber of fibers of raw silk were stretched 

 on the glass ring and cover-glass, imitating the experiment with the 

 spider webs. 



Out of twenty-nine cases there were fourteen that gave positive 

 results, one being infected. 



Fig. 4 Experiment 233, 4, sliowing epithelial movement (E) on the boiled 

 cartilaginous plate (ch) of sclerotic coat closely placed on the endothelial surface 

 of cornea. Cultivated in serum; forty hours' growth, t, cut ends of the piece of 

 cornea are clearly visible through the transparent cartilagineous plate. X 98. 



Similar experiments were made by Carrel and Burrows ('11a) 

 with embryonic chick tissue. 



c. Glass wool as support. Glass wool (Merck) was thoroughly 

 cleaned and sterilized, then placed in the culture, so that the 

 epithelium might attach itself to the fibers. 



Out of twenty-eight cultures sixteen gave positive results. 

 An example is shown in figure 7. 



