22 LIST OF ANNUAL VOLUMES 



FOR THE NINTH YEAB, 1852. 



I. Bibliographic Zoologiae et Geologise. By Professor Agassiz. 



Vol. III. 8vo. 



II. A Monograph of the British Nudibranchiate Mollusca. 



By J. Alder and A. Hancock. Part VI. Twelve 

 Plates. Imp. 4to. 



FOR THE TENTH YEAR, 1853. 



I. A Monograph of the Family Cirripedia. By C. Darwin, 



M.A., F.R.S. Vol.11. Thirty Plates. 8vo. 



II. Botanical and Physiological Memoirs, including Braun on 



Rejuvenescence in Nature. Six Plates. 8vo. 



FOR THE ELEVENTH YEAR, 1854. 



Bibliographia Zoologiae et Geologise. By Professor A.g 

 Vol. IV. 8vo. (Completing the work.) 



FOR THE TWELFTH YEAR, 1855. 



A Monograph of the British Nudibranchiate Mollusca. By 

 J. Alder and A. Hancock. Part VII. Nine Plates. 

 Imp. 4to. (Completing the work.) 



FOR THE THIRTEENTH YEAR, 1856. 



A Monograph of the British Fresh-water Polyzoa. By Pro- 

 fessor Allman, F.R.S. Eleven Plates. Imp. 4to. 



