TABLE 3 



*Pieces which measured: 1.2 x 0.6 mm.; 1.8 x 0.5 mm-, 2.0 x 0.6 mm-, 2.4 x 

 1.1 mm., and 0-8 x 0.8 mm., were entii'ely covered up with moving epithelium 

 in seventeen hours. 



554 



