CONTENTS. m 



Art. XIII. Notice of the Remains of a Fish found connected 

 with a Bed of Coal at Clackmannan. In a Let- 

 ter to Professor Jameson from Dr Fleming, Pro- 

 fessor of Natural Philosophy in King's College, 

 Aberdeen. With a Plate, . - - 314 



XIV. Remarks on Certain Statements of Mr Faraday, 

 contained in the Fourth and Fifth Series of his 

 " Experimental Researches on Electricity." By 

 John Davy, M. D., F. R. S. Communicated by 

 the Author, 317 



XV. On the Temperature of some Fishes of the genus 

 Thynnus. By John Davy, M.D., F. R.S„ 



Assistant-Inspector of Army Hospitals. Com- 

 municated by the Author, _ - .. 325 



XVI. Professor Agassiz on the Arrangement and Geology 



of Fishes, . . • - - - 331 



XVII. Notice of Plants new to the British Flora, or rare in 

 Scotland, observed during the last Twelve Months, 

 in various Excursions from Edinburgh. Com- 

 municated by Dr Graham, - . . 348^^ ^ 



XVIII. The British Association at Dublin, in August 1835, 353 



Section A. ]\Tathematics and General Physics, 352 — I. Professor Whe- 

 well on the application of IMatheinatical and D3'nainical Principles to 

 JMagnetism, Electricity, Heat, &c. 2. Mr Snow Hanis's description of 

 a new instrument for measuring Electrical Forces. 3. Professor Powel 

 on Radiant Heat. 4. Dr H. Hudson on the Kadiation of Heat. 5. Cap- 

 tain Ross on a new theory of the Aurora Borealis. C. ]Mr R. JIallet on 

 an economic application of Electro-Magnetic Force to manufacturing 

 purposes. 7. Professor Whewell on Heat. 8. Dr Allmann on the forms 

 of the Cells of Plants. 9. Dr Reid on Sound. 10. j\Ir S. Harris on the 

 naUire of Electrical Attraction. 11. Mr J. S. Russel on the laws of the 

 motions of Floating Bodies. 12. Mr Prilchard's Experiments on Polar- 

 ization. 13. Mr S. Harris on the use of the Pioof, Plain, and Torsion 

 Balance of Coulomb and others. 14. Captain Sabine on Hansteen's Re- 

 searches on Terrestrial INIagnetism. 15. Professor Whealstone on the 

 Light formed by the Voltaic Spark between Charcoal Points. 16. Rev. 

 Mr JVI'Gauley on the application of Magnetism as a JMovuig Power. 

 17. Mr H. W. Fox on a new Dipping Needle. 18. Mr Hamilton on the 

 theory of Logologucs, and other numbers of higher orders. 19. On an 

 apparatus by which Figures may be seen, or Sentences read, as distinctly 



