iv CONTENTS. 



Art. XXXI. Scientific Iktblligence 



PAOfe 



MElTEOROtiOGY. 

 1. The Great Fall of Rain in the Lake District in the 

 North of England. 2. On the Relation of the 

 Direction of the Wind to the Age of the Moon, as 

 inferred from Observations at the Royal Observa- 

 tory, Greenwich, from November 1840, to De- 

 cember 1847. By G. B. Airy, Esq., F.R.S., &c., 

 Astronomer Royal. Received January 1851, 189 



HYDROLOGY. 

 3. Action of "Waves. 4. On the Alteration which 



Well-water undergoes. By M. C. Blondeau, 191 



GEOLOGY AND MINERALOGY. 



6. Platinum of California. 7. Discovery of a New Metal 

 by Dr Bergemann. 8, Effect of Pressure on the 

 Freezing of Water, 9. M. Barrande on the Trilo- 

 bites of Bohemia, . . . . 193 



10. The boring power of Pholas Dactylus. 11. Story 

 of the Painting by Zeuxis. 12. New Marine 

 Animals discovered during a cruise among the 

 Hebrides. By Professors Edward Forbes and J. 

 Goodsir. 13. East India Company's Museum. 

 14. Nest-building Pishes. 15. Relations of Em- 

 bryonic Development to Permanent Forms. 16. 

 Doctrine of Specific Organic Centres. 17. The 

 Four Degrees of Hybridity. 18. Explanation of 

 the Rapid Decrease of the Native Population of 

 Polynesia, &c. 19. Feline Hybrids. 20. De- 

 scription of a New Species of Filaria. By Joseph 

 Leidy, . . ^ • . 194-200 



BOTANY. 



21. Marine Flora of the United States. 22. California 

 Soap-Plant. 23, Coffee. 24. Atmospheric Dis- 

 semination of Algous Plants. 25. Vegetable Phy- 

 siology, 201-203 



MISCELLANEOUS. 



26. Writing in a Native Negro Character. 27. 

 Foreign Ice. 28. Cochineal. 29. The Life of a 

 Wandering Naturalist, . . . 204, 206 



XXXII. List of Patents granted for Scotland from 17th 



March to 19th June 1851, . . . 209 



