ISSUED BY THE RAY SOCIETY. 23 

For tHe FourteEentH YEAR, 1857. 
A Monograph of the Recent Foraminifera of Great Britain. 
By Professor Williamson, F.R.S. Seven Plates. Imp. 4to, 
For tHe Firtrentu 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. 
Ato. 
For THE SEVENTEENTH YEAR, 1860. 
An Introduction to the Study of the Foraminifera. By W. B. 
Carpenter, M.D., F.R.S., F.L.8., &c., assisted by W. K. 
Parker, F.R.S., and T. Rupert Jones, F.G.S. Twenty- 
two Plates. Imp. 4to. 
For tHe Eieuteentu Year, 1861. 
On the Germination, Development, and Fructification of the 
Higher Cryptogamia, and on the Fructification of the 
Conifere. By Dr. Wilhelm Hofmeister. Translated by 
Frederick Currey, M.A., F.R.S., Sec. L.S. Sixty-five 
Plates. 8vo. 
