THE 



VITREOUS BODY 



ITS ORIGIN, DEVELOPMENT, AND STRUCTURE 

 AS OBSERVED IN THE EYE OF THE PIG 



BY 



Aloisius William Fromm, o. f. m. 



Thesis submitted to the Faculty of Sciences of the Catholic 



University of America, in partial fulfillment of the 



requirements for the degree of 



Doctor of Philosophy 



Washington, D. C. 



1921 



