394 ADDENDA. 



Laekenian. M. Dollfus thinks it Tongrian. The beds are unfossili- 

 ferous. G. A. L. 



Ortlieb, J. Reflexions a propos dune communication de MM. Chel- 



lonneix et Lecocq, au sujet de la presence au Mont d'Halluin de 



fragments isoles de gres paniseliens. [On MM. Chellonneix and 



Lecocq's Note on isolated Fragments of Paniselian Sandstone at Mt. 



HaUuin.] Ann. Soc. Geol. Nord, t. ii. pp. 198-200. 



The paper referred to is that on the neighbourhood of Tourcoing 



(p. 385^. Urges caution in the interpretation to be given to the presence 



of disseminated debris of distant formations. G. A. L. 



. Note sur le Mont des Chats. [The Mont des Chats (JFranco- 



Belgian Frontier).] Ann. Soc. Geol. Nord, t. ii. pp. 201-213 ; 



one fig. in text. 



The geology of this Tertiary Hill is explained by means of 6 sections. 



It is shown that the first modelling of the Flemish Tertiary hills goes 



back to U. Eocene times. G. A. L. 



Parsons, Dr. H. F. The Flora of East Somerset. Naturalist, vol. i. 

 no. iv. pp. 53-55. 



Abstract of paper read to Somerset Archseol. Nat. Hist. Soc. Notes 

 the difi'erence of the flora on sandy and calcareous beds, and the relation 

 between the geology and flora. W. W. 



Pengelly, W. Notes on recent Notices of Kent's Cavern. Rep. Teign. 



Nat. Club for 1874, pp. 6-9. 

 Phillips, Prof. John. Illustrations of the Geology of Yorkshire. 



Part 1. The Yorkshire Coast. Ed. 3. Edited by R. Etheridge. 



Maps and 28 plates (fossils and sections). Pp. xii, 354. 4to. 



London. 

 Palaeozoic Pocks, p. 1. Vale of York (Pleistocene, Permian, Trias, 

 and Lias), p. 8. Moorlands (Lias and L. Oolites), p. 24. Tabular 

 Oolitic Hills, p. 40. Vale of Pickering, p. 46. Chalk Wolds, p. 50. 

 Holderness (Pleistocene), p. 55. Coast-section (Pleistocene, Cretaceous, 

 Oolites, and Lias), p. 67. Diluvium, p. 162. Econoniic Geology, 

 p. 173. The Basaltic Dyke, p. 190. Fossils : Plants, p. 193 ; Animals, 

 p. 234. Elevations, p. 273. Post-tertiary Shells (by J. G. Jeffreys), 

 p. 274. Oolitic Foraminifera (by T. R. Jones), p. 278. Bibliography 

 (by W. Whitaker), pp. 281-320. W. H. D. 



Phillips, J. A. On the Structure and Composition of certain pseudo- 



morphic Crystals, having the form of Orthoclase. Journ. Chem. 



Soc. ser. 2, vol. xiii. pp. 684-687. 

 Pseudomorphs after crystals of orthoclase from Huel Coates, St. 

 Agnes, Cornwall, were examined microscopically and chemically. One 

 specimen was found to consist of silvery white mica-like plates, with 

 rounded particles of quartz of contemporaneous formation, and a few 

 grains and crystals of tin-oxide. Another crystal resembled this, but 

 contained more cassiterite ; while a third was largely composed of 

 crystalline cassiterite, traversed by crystals of blue tourmaline, associated 



