Meteorological Observations. 239 



Gentlemen, on applying to me, may be furnished with copies of 

 these instructions and forms for recording the observations ; and all 

 observations that may be made in accordance therewith and for- 

 warded to me, will be carefully examined and reported on at the 

 next meeting of the British Association. 



N.B. Observations will be made at several Lighthouses by direc- 

 tion of the Honourable the Corporation of the Trinity House, and 

 Captain Beaufort has most kindly undertaken to obtain observations 

 from several of our surveying vessels. 



2 Sidney Place, Cambridge Road, "W. R. Birt. 



Bethnal Green. 



METEOROLOGICAL OBSERVATIONS FOR JULY 1845. 



Chiswick. — July 1. Rain and boisterous, with heavy rain in forenoon : over- 

 cast. 2. Overcast ; rain. 3. Sultry : thunder and rain : clear at night. 4, 5. 

 Very fine. 6. Sultry, with slight dry haze : lightning at night. 7, 8. Very fine. 

 9. Cloudy : rain. 10. Rain : overcast. II. Rain : cloudy : 1 p.m. thunder and 

 excessively heavy rain commenced. 12. Fine. 13. Slight rain : overcast. 

 14. Very fine : rain. 15. Showery: fine. 16. Very fine : rain. 17. Showery. 

 18, 19. Very fine. 20. Cloudy: rain. 21. Fine. 22. Very fine : rain. 23. 

 Drizzly. 24. Overcast. 25, 26. Foggy : overcast. 27, 28. Cloudy : rain. 

 29. Heavy clouds : clear. 30. Densely clouded : rain. 31. Heavy showers. — 

 Mean temperature of the month 1|° below the average. 



Boston. — July 1. Cloudy: rain early a.m.: rain a.m. and stormy p.m. 2. 

 Cloudy. 3. Cloudy : rain early a.m. : rain with thunder and lightning a.m. 

 4. Cloudy : rain, with lightning p.m. 5. Fine. 6. Fine : lightning at night. 

 7. Fine: 3 o'clock p.m. thermometer 81°. 8. Fine. 9. Fine : rain p.m. 10. 

 Cloudy. 11. Rain. 12, 13. Cloudy. 14. Cloudy: rain early a.m. : rain p.m. 

 15,16. Fine. 17. Rain. 18. Fine. 19. Cloudy. 20. Cloudy: rain p.m. 

 SI — 27. Cloudy. 28. Fine : rain p.m., with thunder and lightning. 29. Rain : 

 rain early A.M : rain p.m. SO. Fine: rain p.m. 31. Fine; rain, with thunder 

 and lightniug p.m. 



Sandwich Manse, Orkney. — July 1. Cloudy : rain. 2. Damp: clear. 3. Clear: 

 drizzle. 4. Clear : showers. 5, 6. Clear. 7. Rain : fog. 8. Clear. 9. Cloudy : 

 showers. 10. Showers: clear: damp. 11. Bright: showers. 12. Showers. 

 13. Showers: clear. 14,15. Cloudy: showers. 16. Cloudy. 17. Clear. 

 18, 19. Bright: hot. 20. Damp: fog. 21. Fog. 22, 23. Cloudy. 24. Cloudy : 

 damp. 25. Cloudy : drops. 26. Drops : cloudy. 27. Clear : showers. 

 28. Clear: rain: clear. 29. Fine. 30. Cloudy : fine. 31. Bright: drops. 



Apjtlegarth Manse, Dumfries-shire.-^ July 1. Very heavy rain. 2. Very beau- 

 tiful day. .".. Showers : thunder. 4. Fine. 5. Very fine. 6. Showers : thunder. 

 7. Showers a.m. : fine p.m. 8,9. Showers. 10. Fair and fine. 11. Showers. 

 12. Fair and clear. 13. Wet. 14. Heavy showers. 15. Fair and fine. 16. 

 Heavy showers. 17. Fair and fine. 18, 19. Fair, but cloudy. 20,21. Fair, 

 but clear. 22, 23. Fair, but cloudy. 24, 25. Fair and fine. 26. Showers. 

 27. Fair a.m. : showers p.m. 28. Fine: thunder. 29. Showers p.m. 30, 31. 

 Showers. 



Mean temperature of the month 56°'2 



Mean temperature of July 1844 56 -9 



Mean temperature of July for twenty-three years . 58 •! 



Rain in July 2 '18 inches. 



Mean rain in July for eighteen years 3*91 „ 



