Il8 ADDinOlfS TO THE LIBEAET. 



Sponges constituting tlie Family Dictjospongidse, 725. — J. Hall. On the 

 LamellibrancMate Fauna of the Upper Helderberg, Hamilton, Portage, 

 Chemung, and Oatsldll Grroups (equivalent to the Lower, 31iddle, and 

 Upper Devonian of Eiuope); with especial reference to the Arrangement 

 of the Monomyaria and the Development and Distribution of the Species 

 of the Genus Leptodesma, 726. — T. Sterry Hunt. The Eozoic Eocks of 

 North America, 727. — J. F. Blake. First Impressions of some Pre- 

 Oambrian Rocks of Canada, 728. — J. D. Dana. On the Southward 

 Ending of a great Synclinal in the Tacouic Range, 729. — H. J. Johnston- 

 Lavis. Notice of a G-eolcgical Map of jMonte Somma and Vesuvius, 

 730. — ^W. Whitaker. The Value of detailed Geological Maps in relation 

 to Water-supply and other Practical Questions, 731. — V. Ball. Oii the 

 Mode of Occm-rence of Precious Stones and Metals in India, 731. — 

 0. Le Neve Foster. What is a Mineral Vein or Lode ? 732. — G, K. 

 Gilbert. Plan for the Sabject-Bibhography of North- American Geology, 

 732. — E. W. Claypole. On some Remains of Fish from the L'pper 

 Silurian Rocks of Pennsylvania, 733. — 0. C. Marsh. On American 

 Jm-assic Mammals, 734 — T. Rupert Jones. On the Geology of South 

 Africa, 736. — Sir W. Dawson. On the more Ancient Land Floras of 

 the Old and New Worlds, 738. — J. S. Gardner. On the Relative Ages 

 of the American and the English Cretaceous and Eocene Series, 739. — 

 E. Wethered. On the Structure of English and American Carboniferous 

 Coals, 741. — A. H. Mackay. A preliminary Examination of the Siliceous 

 Organic Remains in the Lacustrine Deposits of the Province of Nova 

 Scotia, Canada, 742. — G. F. Matthew. The Geological Age of the 

 Acadian Fauna, 742. — G. F. Matthew. The Primitive Conocorvphean, 

 743.— P. Hallett. Notes on Niagara, 744.— 0. C. Marsh. On the Classi- 

 fication and Affinities of Dinosaurian Reptiles, 763. 



Brussels. Musee Royal d'Histoire Naturelle de Belgique. Bulletiii. 

 Tome iii. (1884). Nos. 2-4. 1884. 

 A. Renard. Notice sur la composition mineralogique de I'arkose de 

 Haybes, 117. — L. Dollo. Cinquieme Note sur les Dinosauriens de Ber- 

 nissart, 129. — L. Dollo. Premiere Note sur le Simoedosaurien d'Erque- 

 Ihines, 151. — A. Renard. Recherches sur la composition et la structure 

 des phyllades ardennais, 231. — J. Purves. Esquisse geologique de I'ile 

 de Ajitigoa, 273. 



. Societe Royale des Sciences de Liege. Memoires. Supple- 

 ment an Tome x. 1883. (4to.) 



Buckhurst HiU. Essex Field Club. Transactions. Vol. iii. Part 8. 

 1884. 

 N. F. Robarts. Notes on the London Clay and Bagshot Beds at 

 "Oakhill" Quarry, Epping Forest, 231. 



Budapest. Magyar Foldtani Tarsnlat [Geological Society]. Pold- 

 taniKozlony. Kotet 4 (1874). 1874. 

 F. Posepny. Geologisch-montanische Studie der Erzlagerstatten von 

 E^zbanya in S.O.-Ungarn, 1. 



Xotet 9 (1879). 1879. 



J. Bockh. Sz6renymeg3'e deli reszere vonatkozo geologiai jegyzetek, 1. 

 — L. Maderspach. Uj czinkercz fekhely Gomorben, 31, — J. Matyasovszky. 

 A Glenodictyum egy uj lelhelye Erdelyben, 32. — J. Bockh. Auf den shd- 

 lichen Theil des Comit. Szoreny beziigliche geologische Notizen, Qo. — L. 



