JST OF THE ANNUAL VOLUMES ISSUED 

 BY THE HAY SOCIETY. 



For the First Year, 1844. 



I. Reports on the Progress of Zoology and Botany. Trans- 



lated by H. E. Strickland, Jan., M.A, F.R.S., E. Lan- 

 kester, M.D., F.R.S., and W. B. Macdonald, B.A. 8vo. 



II. Memorials of John Bay: consisting of the Life of John 



Ray, by Derham ; the Biographical Notice of Ray, by 

 Baron Cuvier and M. Dupetit Thouars, in the ' Biographic 

 Universelle; ' Life of Ray, by Sir J. E. Smith : the Itine- 

 raries of Ray, with Notes, by C. C. Babington and 

 W. Yarrell. Edited by E. Lankester, M.D., F.R.S. 8vo. 



III. A Monograph of the British Nudibranchiate Mollusca. 

 By J. Alder and A. Hancock. Part I. Ten Plates. 

 Imp. 4to. 



For the Second Year, 1845. 



I. Steenstrnp on the Alternation of Generations. Translated 



from the German by George Busk, F.R.S. Three Plates. 

 8vo. 



II. A Monograph of the British Nudibranchiate Mollusca. 



By J. Alder and A. Hancock. Part II. Thirteen 

 Plates. Imp. 4to. 



