1824.] Geological Society. 391 



the paper concluded by the application of these formulae to the 

 corrections of angles actually observed in the operations in 

 India. 



3. On the Method of determining the Difference of Meridians 

 by the Culmination of the Moon ; by Francis Baily, Esq. FRS. 

 V . Pres. Ast. Soc. This paper was too long to permit its read- 

 ing to be completed at the present sitting ; and we shall, there- 

 fore, reserve our remarks upon it until it is concluded. 



Several veiy valuable books were presented to the Society. 



GEOLOGICAL SOCIETY. 



Feb. 20. — A notice was read on the Megalosaurus, or great 

 Fossil Lizard of Stonesfield, near Oxford; by the Rev. W. 

 Buckland, FRS. FLS. President of the Geological Society, and 

 Prof, of Mineralogy and Geology in the University of Oxford, 

 &c. &c. 



The author observes that he has been induced to lay before 

 the Society the accompanying representations of various portions 

 of the skeleton of the fossil animal discovered at Stonesfield, in 

 the hope that such persons as possess other parts of this extra- 

 ordinary reptile may also transmit to the Society such further 

 information as may lead to a more complete restoration of its 

 osteology. No two bones have yet been discovered in actual 

 contact with one another, excepting a series of the vertebra;. 

 From the analogies of the teeth they may be referred to the 

 order of the Sauricuis or Lizards. From the proportions of the 

 largest specimen of a fossil thigh bone, as compared with the 

 ordinary standard of the Lacerta?, it has been inferred that 

 the length of the animal exceeded forty feet, and its height 

 seven. Prof. Buckland has, therefore, assigned to it the name 

 of Megalosaurus. The various organic remains which are found 

 associated with this gigantic lizard form a very interesting and 

 remarkable assemblage. After enumerating these, the author 

 concludes with a description of the plates, and observations on 

 the anatomical structure of such parts of the Megalosaurus as 

 have hitherto been discovered. 



MEDICO-BOTANICAL SOCIETY. 



. Feb. 13. — Some observations were made on the Acacia Cate- 

 chu. A paper was also read, on a bark termed the Malambo 

 Bark, lately imported from America. 



Feb. 27. — Some observations were read, on the alterations in 

 the Pharmacopoeia. 



March 12. — A paper was read, entitled " Observations on the 

 Anthroxanthum Odoratum; by T. Rowcroft, Esq. his Majesty's 

 Consul General at Peru : communicated by Dr. Bree, President. 



March 26. — Some observations were made on the Croton 

 Tiglium ; by Mr. Pope, of Oxford-street. 



April 9. — A paper was read on the Resina Acaroides, by Mr 

 W.Bollaert. 



