ISSUED BY THE RAY SOCIETY. 25 



For the Fourteenth Year, 1857. 



A Monograph of the Recent Foraminifera of Great Britain. 

 By Professor Williamson, F.R.S. Seven Plates. Imp. 4to. 



For the Fifteenth Year, 1858. 



The Oceanic Hydrozoa. By Professor Huxley, F.R.S. Twelve 

 Plates. Imp. 4to. 



For the Sixteenth Year, 1859. 



A History of the Spiders of Great Britain and Ireland. By 

 John Blackwall, F.L.S. Part I. Twelve Plates. Imp. 

 4to. 



For the Seventeenth Year, 1860. 



An Introduction to the Study of the Foraminifera. By W. B. 

 Carpenter, M.D., F.R.S., F.L.S., &c, assisted by W. K. 

 Parker, F.R.S., and T. Rupert Jones, F.G.S. Twenty- 

 two Plates. Imp. 4to. 



For the Eighteenth Year, 1861. 



On the Germination, Development, and Fructification of the 

 Higher Cryptogamia, and on the Fructification of the 

 Coniferse. By Dr. Wilhelm Hofmeister. Translated by 

 Frederick Currey, M.A., F.R.S., Sec. L.S. Sixty-five 

 Plates. 8vo. 



