XCVl PROCEEDIXGS OF THE 



C. Semper, On the alternations of generations in stony Corals, 

 G plates and woodcuts. Zeitsehr. wiss. Zool. xxii. 



F. Sommer and F. Landois. On the structnre of the sexual organs 

 of Bothriocejihalus laius, 5 plates. Zeitsehr. wiss. Zool. xxii. 



L. VaiUant. On the anatomy of PontobdeUa, 4 plates. Ann. Sc. 

 Nat. Zool. Ser. 5, xiii. — On the acclimatization and anatomy of 

 Perichceta diffringens (from the Comptes Rendus). Ann. Nat. Hist. 

 Ser. 4, is. 



A. E. Verrill. On the distribution of marine animals on the 

 coast of New England. — On the affinities of palaeozoic tahiilate 

 Corals with existing species, woodcuts. Ann. Nat. Hist. Ser. 4, ix. 



J. G. Waller. On the so-ealled boring or burrowing Sponge, 

 1 plate. Journ. Quek. Microsc. Chib, ii. 



E.. V, Willemoes-Suhm, On the development of Polystoma inte- 

 gerrimum and P. ocellatum, 1 plate. Zeitsehr. wiss. Zool. xxii. and 

 Proc. E.. Soc. Sc. Gottingen, 1871, 



E. Zeller. Researches on the natural history and development 

 of Polystoma intetjerrimum, Rud., 2 plates. — Researches on the 

 development of Diphzoon paradoxum. Zeitsehr. wiss. Zool. xxii. 



Ph.exogamic Botany : — 



P. Ascherson. Enumeration of the marine Phanerogams col- 

 lected by Beccari in the Indian Archipelago and the Red Sea. 

 Nuov. Giorn. Bot. Ital. iii. — Phytographical observations (CJeis- 

 tanthus, Scdvia, Cleistostigma, MotUia). Bot. Zeit. 1872. 



H. Bailion. Histoire des Plantes : Menispermaceae, Berbevidae, 

 Nymphaeace«, Nyctagineae, Malvaceae, Phytolaccacese. Purchased. 



J. G. Baker. Symea, a new genus of Liliaceae from Chile, 1 plate. 

 — Revision of the Cape species of Anthericum. Joum. Bot. 1872. 



J. Balderrama. Descriptive essay on the Palms of San Martin 

 and Casanave. Rep. National Exhib. Bogota. 



J. H. Balfour. On the variation at different seasons of Hieracinm 

 stoloniferwn, W. et Kit., 2 plates. — Remarks on the plants which 

 furnish different kinds of Ipecacuanha. Trans. Bot. Soc. Edinb. xi. 



A. W. Bennett. On the floral structure of Impatiens fulva, 

 1 plate. Journ. Linn. Soc. Bot. xiii. 



A. Blytt. The Phanerogams and Ferns of the neighbourhood of 

 Christiania, with notes on geographical distribution. Presented by 

 the Author. 



A. Biickeler. Cyperaceae of the Berlin Herbarium (continued). 

 Linniea, xxxvii. 



