vy > I — ' # ■ 



SUBMICROSCOPIC MORPHOLOGY 



OF PROTOPLASM 



xj 



by 



A. FREY-WYSSLING 



PROFESSOR OF GENERAL BOTANY AT THE FEDERAL INSTITUTE OF TECHNOLOGY 



ZURICH (SWITZERLAND) 



Second English Edition 



No^ a i^ir 



ELSEVIER PUBLISHING COMPANY 



AMSTERDAM • HOUSTON • LONDON* NEW YORK 



1953 



