Meteorological Observations. 465 



LATE APPEARANCE OF THE SWALLOW. 



To the Editors of the Annals of Natural History. 



Croydon, 24th Nov. 1852. 



Gentlemen, — I beg to bring to your notice an unusual visitation of 

 Swallows, which occurred on the 22nd instant in this neighbourhood. 

 About a dozen or more of these birds were observed flying in cir- 

 cuits of about 100 yards, keeping close to one building. It was 

 about half-past eight o'clock in the morning when they were first 

 perceived, and the weather was very dark and cloudy. 



I have been induced to forward the above communication, as I 

 find in White's 'Natural History of Selborne' that the latest notice 

 of these birds being seen is about the middle of November, except in 

 one instance, when two were perceived on the 23rd of that month. 

 I am, Gentlemen, your obedient servant, 



G. Bryant. 



METEOROLOGICAL OBSERVATIONS FOR OCT. 1852. 



Chiswick. — October 1 . Fine. 2. Uniformly overcast -. very fine : clear. 3. Clear : 

 very fine : clear : slight rain. 4. Constant and very heavy rain : clear. 5. Clear 

 and boisterous. 6. Rain : clear at night. 7. Cloudy : tine : uniformly overcast. 

 8. Overcast: fine. 9. Clear : very fine : rain. 10. Overcast. 11,12. Very fine. 

 13. Fine : dusky haze. 14. Foggy : uniform haze : at night clear above, hazy 

 near the horizon. 15, 16. Foggy : cold haze : clear above at night. 17. Dense 

 fog. 18. Very fine throughout. 19. Foggy: very fine: dense fog at night. 



20. Foggy : exceedingly fine : hazy. 21. Foggy : hazy : rain. 22. Hazy : rain. 

 23. Cloudy : rain. 24. Cloudy : very fine : heavy rain at night. 25. Heavy rain : 

 clear at night. 26. Slight fog : rain. 27. Rain. 28. Densely overcast : cloudy : 

 clear. 29. Clear : overcast : rain. 30. Overcast : rain. 31. Clear and fine : bright 

 sun : overcast at night. 



Mean temperature of the month 46°*38 



Mean temperature of Oct. 1851 51-25 



Mean temperature of Oct. for the last twenty-six years ... 50 -50 



Average amount of rain in Oct 2'60 inches. 



Boston. — Oct. 1, 2. Fine. 3. Cloudy : rain early a.m. 4, 5. Cloudy : rain a.m. 

 and P.M. 6. Cloudy : rain p.m. 7. Fine : rain early a.m. 8, 9. Fine. 10. Cloudy. 

 11— 13. Fine. 14. Foggy. 15— 17. Cloudy. 18. Fine. 19. Cloudy. 20. Fine. 

 21,22. Rain: rain a.m. 23. Cloudy: rain a.m. 24,25. Fine. 26. Fine: 

 rain p.m. 27. Fine : rain a.m. and p.m. 28. Rain : rain a.m. 29, 30. Cloudy. 

 31. Fine: rain early a.m. 



Sandwich M-anse, Orkney. — Oct. 1. Clear : hoar-frost a.m. : fine : hoar-frost p.m. 

 2. Rain. 3. Bright a.m. : showers p.m. 4. Cloudy. 5. Cloudy a.m. : clear p.m. 

 6, 7. Sleet-showers. 8. Sleet-showers a.m. : cloudy p.m. 9. Drizzle a.m. : 

 cloudy P.M. 10. Showers. 11,12. Bright a.m. : cloudy p.m. 13. Rain a.m. : 

 cloudy p M. 14. Cloudy a.m. : cloudy: fine p.m. 15. Bright a.m. : clear: fine 

 p.m. 16. Fine: hoar-frost a.m. : hazy: fine p.m. 17. Fine: cloudy a.m. : rain 

 P.M. 18. Rain a.m. : cloudy p.m. 19. Drizzle. 20. Cloudy a.m. : drizzle p.m. 



21. Fine a.m.: cloudy : fine p.m. 22. Hazy a.m. : drizzle p.m. 23. Cloudy a.m. : 

 clear : fine p.m. 24. Clear : fine a.m. : clear : fine : aurora p.m. 25. Clear: fine. 

 26, 27. Showers. 28. Showers : bright a.m. : clear p.m. 29. Cloudy. 30. 

 Showers. 31. Rain a.m.: cloudy p.m. 



Mean temperature of Oct. for twenty-five previous years 47°*55 



Mean temperature of this month 46 '88 



Average quantity of rain in Oct. for six years 4-39 inches. 



Ann. ^ May. N. Hist. Ser.3. Vol.x. 30 



