BOTANICAL AND PHYSIOLOGICAL 



MEMOIRS, 



CONSISTING OF 



I.— THE PHENOMENON OF REJUVENESCENCE IN NATURE, 



ESPECIALLY IK 



THE LIFE AND DEVELOPMENT OF PLANTS. 

 BY DR. A. BHAUN. . / 



TUANSLATED BY A. HENFREY, F.R.S., ETC. 



II.— ON THE ANIMAL NATURE OF THE DIATOME^, 



WITH AN 



ORGANOGllAPHICAL REVISION OF THE GENEEA 



ESTABLISHED BY KilTZING. 



BY PROFESSOR G. MENEGHINI. 



TRANSLATED BY CHRISTOPHER JOHNSOX, M.R.C.S.E. 



III.— AN ABSTRACT OF THE NATURAL HISTORY OF PROTOCOCCUS 



PLUVIALIS. 



BY DR. FERDINAND COHN. 



BY GEORGE BUSK, F.R.S., ETC. 



EDITED BV 



ARTHUR HENFREY, E.R.S., F.L.S. 



LONDON : 



PRINTED FOR THE RAY SOCIETY. 

 MDCCCLIII. 



