IV CONTENTS. 



1 



NUMBER LVI. 



Page 



VIII. Notes on the Reproduction of the Campanulariadce ; with a 

 description of a new species of Laomedea. By the Rev. Thomas 

 HiNCKS, B.A. (With a Plate.) 81 



IX. Contributions to the Palaeontology of the Isle of Wight. By 

 Thomas Wright, M.D. &c S7 



X. Descriptions of some newly discovered species of Araneidea. By 

 John Blackwall, F.L.S 93 



XI. Note of the Mollusca observed during a short visit to the 

 Canary and Madeira Islands, &c., in the months of April and May 

 1852. By R. M'Andrew, F.L.S 100 



XII. On some genera of the Icacinacece. By John Miers, Esq., 

 F.R.S., F.L.S 108 



XIII. Upon the Genus DoUolum and its species. By Dr. A. Krohn. 

 (With a Plate.) 119 



XW. On the genus Lepion. By William Clark, Esq 129 



New Books : — A History of Infusorial Animalcules, Living and Fossil, 

 by Andrew Pritchard, M.R.I. — A Synopsis of the Family of 

 Naiades, by Isaac Lea 134 — 138 



Proceedings of the Zoological Society 138 



Observations on the Circulation of the Blood in the Arachnida, by 

 M. Emile Blanchard ; On the Distribution of Coluber matrix, by 

 John Henry Gurney ; Uses of the Stillingia sebifera, or Tallow 

 Tree, with a notice of the Pe-la, an Insect- wax of China, by J. 

 D. Macgowan, M.D. j Nymphcea alba var. major, by J. De C. 

 Sowerby; On the Structure of the Belemnite; Meteorological 

 Observations and Table 150 — 160 



NUMBER LVII. 



XV. On the Form and Structure of the Shell of OpercuUna Arabica. 

 By H. J. Carter, Esq., Assistant Surgeon, Bombay Estabhshment. 

 (With a Plate.) 161 



XVI. On some genera of the Icacinacece. By John Miers, Esq., 

 F.R.S., F.L.S 176 



XVII. A Catalogue of British Spiders, including remarks on their 

 Structure, Functions, (Economy, and Systematic Arrangement. By 

 John Blackwall, F.L.S 1B2 



