466 Meteorological Observations for October 1828. 



Clouds, 



Cirrus. Cirrocumulus. Cirrostratus. Stratus. Cumulus. Cumulostr. Nimbus. 



20 11 30 6 21 15 10 



Scale of the prevailing Winds. 



N. N.E. E. S.E. S. S.W. W. N.W. Days. 

 1 5 4£ 2 3 5 4 6* 31 



General Observations. — This month to the 27th was generally fine, dry, 

 and mild for the season ; but the last four days, though remarkably fine, 

 were cold, and the nights frosty. This wintry change was brought on by 

 a dry land-wind from the North-east. The first hoar-frost that occurred 

 this autumn was early in the morning of the 3rd instant ; it was accom- 

 panied by a fog, and followed in the day by a large solar halo, whose pris- 

 matic colours were well defined. In the night of the 5th much rain fell 

 here, with a gale from the South. From 8 o'clock till midnight of the 6th, 

 there was sheet lightning, which terminated with thunder and rain. Distant 

 thunder was also heard in the morning of the 7th. In the evening of the 

 21st a thick fog appeared, and was succeeded by one of the heaviest dews 

 we ever remembered to have fallen, it being measurable from the rain- 

 gauge. 



The mean temperature of the external air this month, is half a degree 

 higher than the mean of October for many years past. 



Spring water did not come to its maximum temperature till the beginning 

 of the month, and it continued so nearly throughout. 



The atmospheric and meteoric phenomena that have come within our 

 observations this month, are one solar halo ; eighteen meteors ; lightning 

 and thunder* on two different days; and seven gales of wind; namely, 

 one from the North-east, one from the South, two from the South-west, 

 and three from the West. 



REMARKS. 



London. — October 1. Drizzly: fine. 2. Fine. 3. Very fine. 4. Rainy 

 morning : cloudy. 5. Fine : stormy and wet at night. 6. Cloudy : fine. 

 7. Cloudy : slight fog at night. 8, 9. Fine. 10. Cloudy : fog at night. 

 ll.Veryfine. 12. Slight fog in morning: fine. 13. Very fine. 14. Cloudy: 

 fine. 15. Slight fog: cloudy. 16, 17. Cloudy. 18. Very fine. 19. Fine. 



20. Very fine : dense fog at night. 21. Foggy : very fine. 22. Very fine. 

 23. Drizzly. 24. Dense fog : fine. 25, Fine. 26. Dense fog : drizzly. 

 27. Cloudy : drizzly. 28. Cloudy : fine. 29. Slight fog : fine. 30. Fine. 

 31. Cold and cloudy. 



Boston. — Oct. 1 — 3. Fine. 4. Rain. 5. Fine. 6. Fine: heavy rain 

 early a.m. 7. Fine : rain at night. 8. Cloudy and stormy. 9 — 12. Fine. 

 13. Cloudy. 14. Fine. 15. Cloudy. 16, 17. Fine. 18. Cloudy. 19,20. 

 Fine. 21. Cloudy. 22. Fine : rain at night. 23. Rain. 24 — 26. Fine. 

 27. Rain. 28. Cloudy. 29. Fine: some frost in the morning: rain p.m. 

 30. Fine. 31. Cloudy. 



Penzance. — Oct. 1. Fair : showers. 2. Showery : clear. 3. Fair: rain. 

 4.Fair : showers. 5. Rain. 6. Rain : showers. 7. Fair : showers. 8, 9. Fair. 

 10. Fair: showers. 11. Fair: rain. 12. Misty. 13. Misty : fair. 14. Fair. 

 15. Fine. 16, 17. Fair. 18. Fair : misty. 19. Fair : clear. 20. Clear. 



21. Clear: fair. 22. Fair: rain. 23. Clear : showers. 24. Fair: rain. 

 25. Rain. 26. Fair: rain. 27. Clear. 28,Fair. 29, 30. Clear. 31. Fair. 



Meteor o- 



