Contents. 



IX 



PAGE 



XIX. HYDROZOA 310 



A preliminary account, by Edward T. Browne, 

 Universitj' College, London. 



XX. POEIFERA.. 



By K. KiRKPATRICK. 



;}17 



XXL CRYPTOGAMIA 



Musci. 

 By A. Gepp, M.A., F.L.S. 



LiCHENES. 



By V. H. Blackman, M.A., F.L.S. 



Algae. 

 By Miss E. S. Barton. 



Peridineae. 

 By Y. H. Blackman, M.A., F.L.S. 



319 



XXTL REPORT ON THE ROCK SPECIMENS 



By G. T. Prior, M.A., F.G.S., Assist. Mineral 

 Dept., British Museum. 



321 



LIII 



XXin. INDEX 



333 



