.^fc'v Meteorological 'ObservatiorH^^^^^^ 569 



the temperature of the fimd'&t'kwfMM'^^^ ^fi^iW'if^iyibn^lyd^S 

 terrained. ' '-'''^^ * ' '-'' '<'-' '■*'"' -'"i-' :''^hH 



We now see, on distinctly annunciating the qu6st3'6ri, iSitft/iii tii|^ 

 vast diflference between the maximum valiie of t and the temperatuw 

 of the dish will be found a clue to the true explanation. '.( 



I renaai?V^^f^f Sir, with great respect, ,|^ 



Your obe<iieii*!Sfcrvant, IJ 



October 14, 1845. •.■ultj! !;■■ S. X. '•? 



iii' ■ ':!(! 



,^.S. I shall perhaps at a future time attempt a formal solution tff' 

 th6 problem. It does not exclude M. Boutigny's views. ■ *' 



■■■'i 



<i 



METEOROLOGICAL OBSERVATIONS FOR OCT. 1845. '1 



Chiswick. — October 1. Very fine. 2,3. Rain. 4. Cloudy and fine. 5. Cloudjr^ 

 and fine: clear. 6. Foggy: cloudy: rain. 7. Rain: cloudy: clear. 8. Foggy ^, 

 fine. 9. Rain : clear. 10. Heavy rain. 11. Rain, with fog : showery : clear : 

 slight frost. 12. Dense fog: cloudy : fine. 13 — 16. Very fine. 17 — 19. Over- 

 . cast and fine. 20. Densely overcast : clear and fine. 21,22. Fine. 23. Fine:^? 

 clear and frosty at night. 24. Dense fog : very fine. 25, 26. Foggy : partially^ 

 overcast. 27. Overcast: clear. 28—30. Very fine. 31. Overcast — Mean tem- 

 perature of the month \° below the average. _ j, 



Boston. — Oct. 1. Fine. 2. Rain: rain early a.m. 3. Cloudy: rain a.m. and 

 P.M. 4. Fine : rain p.m. 5. Fine. 6. Fine : rain p.m. 7. Rain : rain early am. : 

 rain A.M. 8,9. Fine : rain p.m. 10. Fine. 11. Rain : rain early a.m. 12. 

 Fine. 13. Cloudy: rain early a.m. 14—16. Fine. 17, 18. Cloudy. 19. 

 Cloudy : rain A.M. 20. Cloudy. 21. Fine. 22 — 24. Cloudy. 25,26. Fine. 

 27. Cloudy. 28. Fine. 29. Cloudy. 30,31. Fine. v^ri l*'u>iV 



Sandwich Mante, Orkney. — Oct. 1. Showers. 2. Bright : clear. 3. Cloudy: 

 drops. 4. Showers. 5, 6. Bright : clear. 7. Rain. 8. Rain : damp. 9, 10. 

 Rain. 11. Showers: rain. 12. Bright: cloudy: halo large. 13. Rain. 14. 

 Cloudy: rain. 15. Cloudy. 16. Showers. 17. Showers : sleet : cloudy. 18. 

 Showers : clear. 19. Cloudy : rain. 20. Rain: showers. 21. Cloudy : damp. 

 22. Damp : drizzle, 23. Damp ; cloudy. 24. Bright : rain, 25. Bright : 

 cloudy. 26. Showers : rain. 27. Showers : bright : cloudy. 28. Rain. 29., 

 Drizzle : cloudy. 30,31, Showers : clear. '"'■ 



Applegarth Manse, Dumfries-shire.— Oct. 1, Fair, but threatening. 2. Dull : 

 rain, 3. Deluge of rain : flood. 4. Soft rain all day. 5, 6. Fair and clear :. 

 hoar-fro-t. 7. Fair, but cloudy. 8. Fair a.m. : rain p.m. 9. Rain early a.m. :% 

 cleared. 10. Slight showers p.m. 11. Fine: rain. 12. Fair, but cloudy : haIo< 

 13, Rain, 14. Fair and fine. 15. Wet a.m. : cleared. 16. Fair and clewy^; 

 17. Rain all day, 18, Frequent showers. 19. Rain. 20. Bitter showers. 21j./ 

 Moist, but no fall, 22. Fair and fine. 23. Fair and fine: cloudy. 24. Drizzling- ,'" 

 r.M, 25. Beautiful day : one slight shower. 26. Fair, but chilly : rain f.uJ^- 

 27, 28. Wet. 29. Wet : very wet p.m. 30. Wet early a.m. : fine p.m. 31. Fafir 

 and fine. ,,i]r|. 



Mean temperature of the month 49°'6 i,^l' 



Mean temperature of Oct 1844 47 '2 



Mean temperature of Oct. for twenty-three years . 46 '4 



Phil. Mag. S. 3. No. 1 83. Suppl. Vol. 27. 2 P 



% 



