]315,] Scientific IntelUgence. 71 



the modifications of the clouds according to Mr. Luke Howard's 

 plan ; and tlie different animals seen, the appearance of the ice, 

 and other incidental circumstances. 



At the same meeting there was read a letter from Mr. William 

 Nicol, Lecturer on the Philosophy of Natural History, addressed to 

 Professor Jameson, giving an account of a hed of flexible floetz 

 limestone, observed by him on the coast of Durham county, near 

 Tynemouth castle. Fine specimens were exhibited. This lime- 

 stone is very distinctly of a lamellar structure. When a thin bar 

 of it is thoroughly wetted, it is very flexible ; when evaporation has 

 proceeded a certain length, it becomes rather rigid ; but when the 

 water is completely exhaled, it regains its flexibility, nearly to the 

 same extent as when saturated with water. 



There was also read a short account of the different strata cut 

 through in sinking the pit to the coal at Brora in Sutherlandshire, 

 communicated by Mr, Dempster of Dunichen. 



Article VII. 



SCIENTIFIC intelligence; and notices of subjects 



CONNECTED WITH SCIENCE. 



I. Lectures. 

 Mr. Singer will commence his Lectures on Electricity and 

 Electro-Chemistry, at the Russell Institution, on Monday the 16th 

 of January, at 8 o'clock in the evening. The Lectures will be 

 continued every succeeding Monday at the same hour. A syllabus 

 may be obtained of the secretary, at the institution, Great Coram- 

 strcet, Russell-square; or of Mr. Singer, N° 3, Princes-street, 

 Cavendish-square. 



Dr. Clarke and Mr. Clarke will begin their next Course ot 

 Lectures on Midwifery and the diseases of women and children, on 

 Monday, January 23d. The Lectures are read every morning, 

 from a quarter past ten to a quarter past eleven, for the convenience 

 of students attending tbe hospitals. For particulars apply to Dr. 

 Clarke, New jiurlington-strcet, or lo Mr. Clarke, 10, SaviUc Row, 

 Burlington Gardens, . 



Medical School of Si. Thoma$s and Guy's Iloslntals.— lhc 

 Spring Course of Lectures at these adjoining Hospitals will com- 

 mence the beginning of l-'ebruary, viz.: 



ylt St. Thomas's.— Awdtomy aud the Operations of Surgery ; by 

 Mr. Astlcy Cooper and Mr. Henry Cline.— Principles and Practice 

 of Surgery ; by Mr. Astley Cooper. 



ylt Gw7/5.— Practice of Medicine ; by Dr. Babington and Ur. 

 Curry.— Cliemistry; by Dr. Babington, Dr. Marcet, «ntl Mr- 

 Allen.— Experimental Pliiiosopby; Ijy Mr Allen.— 'I'hcory ot Me- 

 dicine, and Materia Mcdicu ; by Dr. Curry and Dr. Cholmelcy.— 



