It CONTENTS. 



Page 



XXXIII. PROCEEDINGS OF SOCIETIES, ... 175 

 Proceedings of the Royal Society of Edinburgh, - - ib- 



XXXIV. SCIENTIFIC INTELLIGENCE, - - 17« 



I. NATURAL PHILOSOPHY. 



Astronomy 1. Pastorff on the Solar Spots and Clouds. 2. Comet seen 



on the Sun's Disk. 3. Singular Appearances in the Comet of 1824. 

 4. Encke's Hyperbolical Elements of the Comet of 1824. 5. Comet of 1824 

 discovered at Paramatta. C. Sir Thomas Brisbane's Catalogue of the Stars 

 in the Southern Hemisphere. 1. Mr Herschel and Mr South on Double 

 Stars. 8. Miss Caroline Herschel's Catalogue of Stars. - 176—178 



Optics 9. Lateral refraction. 10. Mr Dunlop's Reflecting Speculum, 178 



Magnetism. — 11. Effects of Temperature on the Magnetic Forces. 12. Di- 

 urnal Variation of the Terrestrial Magnetic Intensity. 13. Influence of 

 Copper on the Oscillations of Magnetic Needles. 1 4. Effect of Copper in 

 Motion on a Magnetic Needle, - - - - 178, 179 



Meteorology. — 15. Daniell's Improvement on the Barometer. 16. Hy- 

 grometric Properties of Insoluble Compounds. 17- Highest and Lowest 

 Temperature on the Earth's Surface. 18. Remarkable Auroral Arch on the 

 19th March. 19. Bosson's Observations on Waterspouts, - 1?9 — 181 



II. chemistry. 

 20. Cold Produced by the Combination of Metals. 21. Refrigerating Salt. 

 22. On the Pectic or Coagulating Acid. 23. Iodine in Mineral Waters, 181, 182 



III. NATURAL HISTORY. 



Mineralogy — 24. Apatite in Salisbury Crags, Edinburgh. 25. Withamite. 



26. School of Mines in Cornwall, .... 182, 183 



Botany. — Codium tomentosum, and Targionia hypophylla. 28. Tricho- 



manes elegans, - - - - - - -183 



Zoology — 29. Say's American Entomology. 30. Annals of the Lyceum of 



Natural History of New York. 31'. American Fauna, - - 184 



IV. GENERAL SCIENCE. 



32. Remarkable Dissection of a Female Mummy. 33. Discoveries in Nova 

 Zembla. 34. Hazel Nuts found in a singular state at a great depth. 35. 

 The Menai Bridge, near Bangor, Carnarvonshire. 30. Number of Steam- 

 Engines in Glasgow and its neighbourhood in April 1825. 37- Number of 

 Steam Boats on the Clyde in 1825. 38. Poisonous Effects of White Bread 

 upon Dogs. 39. The Goitre cured by Subcarbonate of Soda. 40. Artificial 

 Production of Pearls, ..... 185—187 



XXXV. List of Patents for New Inventions, Sealed in England from 

 October 7, 1824, to January 1, 1825, - - 188 



XXXVI. List of Patents granted in Scotland since March 7, 1825, . 189 



XXXVII. Celestial Phenomena, from July 1, to September 1, 1825, calculated 

 for the Meridian of Edinburgh. By Mr George Innes, Aber- 

 deen, - - - ...190 



XXXVIII. Register of the Barometer, Thermometer, and Rain-Gage, kept 



at Canaan Cottage. By Alex. Adie, Esq. F. R. S.E. - 192 



4 



