402 Scientific Intelligence. — New Publications. 



This work, so rich in well authenticated and well arranged 

 geological facts, and abounding in beautiful views of the mineral 

 and animal kingdoms, cannot be too strongly recommended. It 

 ought to find a place in the library of every one who takes an 

 interest in the natural, and even the civil, history of the planet 

 we inhabit. 



2. Illustration of the Geology of Sussex, containing a general 

 view of the Geological relations of the South Eastern part 

 of England; with Figures and Descriptio7is of the Fossils of 

 Tilgate Forest. By Gideon Mantell, Esq. F. R. S. Fel- 

 low of the Royal College of Surgeons, F. L. S. M. G. S. &c. 

 One volume quarto. 



M. Mantell is already advantageously known to geolo- 

 gists, by his interesting and valuable volume on the geology 

 of Sussex. The present elegant work is a further proof of 

 his skill and activity ; and, therefore, we truly regret to find, 

 from the preface, that this will, in all probability, be the last 

 time we shall have an opportunity of noticing his geological 

 labours, as he intimates his intention of taking leave of this 

 department of Natural History. Sussex, Mr Mantell informs 

 us, is composed of portions of all the v secondary formations of 

 England, from the Purbeck limestone to the tertiary deposits ; 

 outliers of the London and Isle of Wight basin, and accumu- 

 lations of diluvial and alluvial matters. The regular deposits 

 are the plastic clay and London clay., chalk, shanMin sand^ weald 

 clay, and the sands and clays of Hastings. All these different 

 deposits are carefully and luminously described ; the various or- 

 ganic remains with which they abound well described, and many 

 of the more remarkable represented in a series of twenty beau- 

 tiful lithographic plates. The stratification of the Forest of Til- 

 gate, which has excited so much interest on account of its organic 

 remains, is fully described, and evidence adduced of its being 

 older than chalk. The description of the organic remains of 

 Tilgate Forest is concluded with the following striking obser- 

 vations, which also close the work. 



" In concluding this description of the organic remains of Tilgate Forest, 

 we would repeat, what we have elsewhere remarked, that the vast preponde- 



