AUTHOR S ABSTRACT OF THIS PAPER ISSUED 

 BY THE BIBLIOGRAPHIC SERVICE, AUGUST 7. 



CONTRIBUTION TO THE STUDY OF EPITHELIAL 

 MOVEMENT. THE CORNEAL EPITHELIUM OF 

 THE FROG IN TISSUE CULTURE 



SHINICHI IMATSUMOTO (KYOTO) 



shorn Zoological Laboratory, Yale University 



NINE FIGURES 



CONTENTS 



I. Behavior of epithelium cultivated in vitro 546 



1 . Description of types of epithelial movement in plasma 547 



a. Movement into the medium 548 



b. Movement on tissue 549 



c. Other types of movement 549 



2. Movement of epithelium cultivated in serum 550 



3. Velocity of cell movement 551 



II. On the reaction of epithelial cells to certain solid supports 555 



1. Movem.ent on flat surfaces 555 



a. On glass and celloidin 555 



b. On dead cornea 556 



2. Movement on fiberlike supports 557 



a. Spider web as support 557 



b. Silk fiber as support 558 



c. Glass wool as support 558 



d. Asbestos fiber as support 559 



e. Movement on pith, etc 559 



III. Resume 560 



The mechanism of the movement of epitheUum, embryonic as 

 well as adult, has been discussed by various observers, but still 

 further investigation is needed by the use of the tissue-culture 

 method, where direct observation is possible. 



The experimental work reported in the present paper is con- 

 cerned with a study of the movement of corneal epithelium, and 

 especiall}^ with its behavior with reference to certain mechanical 

 supports. 



545 



