CONTEXTS. vil 



Page 



NUMBER LIII. 



XXIX. Sketch of a Classification of Recent Brachiopoda; based 

 upon Internal Organization. By Thomas Davidson, Member of the 

 Geol. Soc. of France, &c 361 



XXX. Notices of British Fungi. By the Rev. If. J. Berkeley, 

 M.A., F.L.S., and C. E. Broome, Esq." (With four Plates.) 377 



XXXI. On some genera of the Icacinacece. By Johx Miers, Esq., 

 F.R.S., F.L.S 387 



XXXII. On the Venus undafa of authors. By William Clark, 

 Esq .' 400 



XXXIII. Notes on some Scotch Zoophytes and Polyzoa. By 

 Wyville T. C. Thomson, Sec. R P.S., F.B.S.E., Lecturer on Bo- 

 tany, King's College, Aberdeen. (With a Plate.) 403 



XXXIV. Characters of new species of Helix from Southern India 

 and Bengal. By W. H. Benson, Esq 404 



XXXV. Observations on Hyperoodon latifrons. By J. E. Gray, 

 Ph.D., F.R.S., V.P.Z.S. &c .'...: 407 



New Books : — The Vegetation of Europe, its Conditions and Causes, 

 by A. Henfrey, F.L.S. — Conspectus Cyclostomaceorum emendatus 

 et auctus Pneumonopomorum Monographiae Prodromus, auctore 

 Dr.Ludovico Pfeiffer 411—413 



Proceedings of the Zoological Society; Cork Cuvierian Society. 413 — 434 



Notice of a twin Mushroom, by Mr. Anderson (with a Plate) ; On the 

 Circulation of the Blood in Insects, by M. Le'on Dufour ; On the 

 Transmigration of Worms, by Charles Vogt ; Meteorological 

 Observations and Table 435 — 440 



NUMBER LIV. 



XXXVI. On the Reproduction of the Higher Cryptogainia and the 

 Phanerogamia. By Arthur Henfrey, F.L.S. &c. (With a Plate.) 441 



XXXVII. Upon the Mode of Generation of an Hymenopterous 

 Insect of the family of the PteromaUdce. By Dr. Ph. de Filippi, 

 Professor of Zooiogy at T.: 461 



XXXVIII. A Catalogue of British Spiders, including remarks on 

 their Structure, Functions, OZconomy, and Systematic Arrangement. 



By John Blackwall, F.L.S 464 



XXXIX. Contributions to the History of the Development and to 

 the Minute Anatomy of the Infusoria. By Prof. Stein of Tharand. 

 (With a Plate.) 4/1 



