CONTENTS 



PART IV.— 1870. 



XVII. Contributions towards the History of Zamia Gigas, Lindl. 8f Hutt. By W. 0. 



Communi- 



Williamson, F.R.S., Professor of Natural Sistory in Oioens College. 



cated by William Carruthers, Esq., F.L.S page 



m:\ 



XVII [. On Fossil Cyeadecm Stems from the Secondary Bocks of Britain. By Wm. Car- 



ruthers, Esq., F.L.S. , F.G.S 



675 



