Meteorological Observations. 255 



containing Melloni on the Polarization of Heat. — Gauss's General 

 Theory of Terrestrial Magnetism. — Gauss on a new Instrument for 

 observing the Intensity of Terrestrial Magnetism. — Weber on the 

 use of the Bifilar Magnetometer. — Schleiden on Phytogenesis. 

 The translations of the Memoirs on Terrestrial Magnetism have 

 been made under the direction and revisal of Major Sabine, Pro- 

 fessor Lloyd, and Sir J. F. W. Herschel, with a view to the main ob- 

 ject of the Antarctic Expedition under Capt. J. C. Ross. 



The Philosophical Transactions of the Royal Society for 1839, 

 Part I. 



Faraday's Experimental Researches in Electricity, with 8 Plates. 

 8vo. 



The Annals of Natural History, No. 21. 



The Report of the Eighth Meeting of the British Association for 

 the Advancement of Science, held at Newcastle in August 1838. 



In the press. The Rev. Dr. Pye Smith's Congregational Lectures 

 on the Relation between the Holy Scriptures and some parts of Geo- 

 logical Science. 



METEOROLOGICAL OBSERVATIONS FOR JULY, 1839. 



ChiswicL — July 1 — 3. Fine. 4, 5. Very fine. 6. Sultry. 7. Hot : thunder 

 and much lightning at night, accompanied with unusually little rain. 8. Very 

 fine. 9 — 11. Fine. 12. Cloudy: slight rain. 13. Very fine. 14. Very fine: 

 rain. 15,16. Fine. 17. Slightly overcast : thunder and heavy rain at night. 

 18. Showery: windy. 19,20. Very boisterous. 21,22, Fine. 23. Showery. 

 24. Rain : fine. 25. Overcast. 26. Very heavy rain. 27. Heavy thunder 

 showers. 28. Cloudy. 29. Fine. 30, 31. Rain. 



Boston. — July 1. Cloudy. 2. Cloudy: rain a.m. 3. Cloudy. 4. Fine. 

 5. Cloudy. 6. Fine. 7. Cloudy. 8. Fine : rain, with thunder and lightning 

 A.M.: rain P.M. 9. Fine: rain, with thunder and lightning p.m. 10,11. Fine. 

 12. Fine: rain p.m. 13. Fine. 14. Fine; rain p.m. 15 — 17. Fine. 18. 

 Cloudy: stormy, with rain P.M. 19. Stormy. 20 — 23. Cloudy. 24. Cloudy: 

 rain early a.m. 25. Cloudy. 26. Cloudy : rain p.m. 27. Rain : rain early 

 A.M.: thunder and lightning P.M. 28. Fine: rain early a.m. 29. Fine: rain 

 P.M. 30. Cloudy: rain early a.m. : rain p.m. 31. Cloudy; rain early a.m. 



^pplegarth Manse, Dumfries-shire. — July 1 , 2. Very fine summer days : clear 

 sky. 3. Very hot. 4. Warm, but with a pleasant breeze. 5. The same : get- 

 ting cloudy P.M. 6. Slight showers all day. 7. Rain. 8. Slight showers 

 a.m.: cleared and was fine. 9. Showery. 10. Wet and stormy nearly all day. 

 1 1. Warm but cloudy : very wet p.m. 12. Heavy rain during night : showery : 

 flood. 13. Fine bracing air. 14. Showery a.m. : cleared up noon : cloudy 

 p.m. 15. Showery a.m. : cleared, and was fine. 16. Remarkably fine day. 

 17. Cloudy and threatening, and electrical. 18. Frequent heavy showers and 

 high wind. 19. Stormy day : rain nearly throughout. 20. Slight showers 

 all day : flood. 21. Pleasant bracing air : getting cloudy p.m. 22. The 

 same : a very slight shower. 23. Showery all day. 24. Showery a.m. : 

 cleared up p.m. 25. Very fine day: air warm and genial. 26. The same: 

 sultry P.M. : thunder. 27. Cooler: wind northerly: cloudy p.m. 28. Remark- 

 ably fine day. 29. Showery all day : distant thunder. 30. Fair and pleasant. 

 31. Slight shower a.m. 



Sun 25 days. Rain 17 days. Thunder 2 days. 



Wind southerly 23 days. Northerly 5 days. Westerly 1 day. Easterly 2 

 days. 



Calm 14 days. Moderate 7 days. Brisk 4 days. Strong breeze 3 diiys. 

 Boisterous 3 days. 



