Xxxiv THIRD REPORT — 1833. 



Isle of Arran, with the view of showing that they are perfectly 

 distinct from the similar rocks connected with the Magnesian 

 Limestone. , o • 



Mr. Hartop exhibited a Map and Sections to illustrate the 

 series of Coal Strata in South Yorkshire, and their direction and 

 varyinff dip in the valley of the Dun, and to the north and south 

 of that^river; described the characters of the strata, and the in- 

 fluence of certain great dislocations on the quality of the coal. 



Mr. Greenough exhibited a Map of Western Europe, on 

 which the relative levels of land and water were represented by 

 means of colours, instead of engraving. Mr. Greenough was 

 requested to permit a map on this plan to be published. 



The Rev. J. Hailstone communicated some notices relating 

 to Mineral Veins. 



Sections of the Well in the Dock Yard at Portsmouth, and 

 of the Well in the Victualling Yard at Weevil, were communi- 

 cated by the Rev. Mr. Leggat and Mr. Blackburn, on the part 

 of the Portsmouth Philosophical Society; and a letter from 

 Mr. Goodrich, explanatary of the Sections, was read. 



Mr. Mantell exhibited a perfect Femur of the Iguanodon, 

 and explained its distinctive anatomical characters. 



Mr. W. C. Trevelyan exhibited specimens of Coprolites, 

 and remains of Fishes, from the Edinburgh Coal-field. 



Mr. Fox exhibited specimens of Fishes from the Magnesian 

 Limestone and Marl-slate of Durham. 



Mr. Gray made some remarks on the occurrence of Water 

 in the Valves of Bivalve Shells, and exhibited a specimen of 

 SjJonclT/lus varitis, in which water was contained in both the 

 valves. 



Mr. Ogilby gave an account of his views respecting the 

 classification of Ruminating Quadrupeds, which he proposed to 

 found upon the presence or absence of horns on the female sex ; 

 the peculiar form of the upper lip ; and the presence or absence 

 of the subocvilar and submaxillary glands. He showed the ap- 

 plication of these views to the division of holloiv-horned rumi- 

 nating animals without horns in the female sex, which he dis- 

 tributed into five new genera. 



The Rev. W. Scoresby communicated some observations on 

 the adaptation of the Structure of the Cetacea to their habits 

 of life and residence in the Ocean ; and suggested the use 

 which might be made of the peculiar forms of the Whalebone 

 in their classification. 



Lieutenant Colonel Sykes exhibited a specimen of the Short- 

 tailed Manis, and communicated some observations on its mode 

 of progression. 



Mr. Brayley communicated a memoir on the laws regulating 



