Meteorological Observations fo7' August \^3\. 319 



Clouds. 



Cirrus. Cirrocumulus. CirrostPHtus. Stratus. Cumulus. Ciinnilostr. Nimbus. 



24 19 30 26 20 14 



Scale of the prevailing Winds. 

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

 3i 2 3 2i 1 5i 7i 6 31 



General Observations. — This month has been remarkably fine, dry, and 

 warm, so that very little interruption was experienced in getting in the full 

 crops of corn, whicli were carried in good condition in this neighbourhood. 

 The only heavy and continued rain was on the 2nd instant, when upwards 

 of an inch fell in seven hours, accompanied with lightning and thunder, 

 and crossing winds ; but on this occasion there was scarcely any difference 

 in the pressure of the atmosphere. In the evenings of the 10th and lllh 

 twelve meteors ap|)eared ; many of them were large, with long sparkling 

 trains. On the ]7tli lightning and thunder again occurred, and, as neaily 

 opposite winds prevailed at the same time, a smart shower of rain fell here; 

 for opposite winds, which of course have different temperatures, invariably 

 condense the atmosphere they pervade, and induce rain. Some injury was 

 done by the lightning in Hampshire. On the 18th, 19th. 20tli and 21st, 

 strong gales of wind blew, first from the West, then from the North. 



The mean temperature of this month is about one and a half degree 

 higher than the mean of August for many years past, which was occasioned 

 by the comparative dryness of the weather, and the consequent strong ter- 

 restrial radiation. 



The atmospheric and meteoric phaenomena that have come within our 

 observations this month, are, two solar halos ; seventeen meteors j lightning 

 and thunder on two days; and four gales of wind, two from theNorth, and 

 two from the West. 



KEMARKS. 



London. — August l.Fine: rain at night. 2. Heavy showers, with thunder. 

 3. Rain. 4. Cloudy: lightning at night. 5. Warm, with heavy thunder- 

 showers. 6 — S. Very fine. 9. Fine: rain. 10 — I.";. Fine. 16. Slight 

 fog: sultry: liglitning at night. 17. Fine in the morning, with showers at 

 intervals: a very heavy tlumder-storm in the afternoon, with rain in tor- 

 rents, mixed with hail; the latter however was so nearly melted that it did 

 but little damage. 18. Fine. 19, 20. Windy : rain at nights. 21. Showers: 

 fine. 22 — 29. Very fine. SO. Fine : cloudy at night, and windy, 31. Rain: 

 fine, but cool at night. 



Penzance. — August 1 — S.Clear. 4,5.Fair. 6. Heavy showers. 7,8. Fair. 



9. Showers. lb— 12. Clear. 1.3— 16. Fair. 17. Clear. 18. Fair: 

 showers. 19. Showers. 20 — 23. Clear. 24. Rain. 25. Fair. 26. Fair: 

 rain. 27. Misty. 28,29. Clear. SO. Fair. 31. Misty: rain. 



This month has been unusually dry; the quantity of rain fallen is 1'8150 

 of an inch, which is less by O'SOOO of an inch than has fallen in the month 

 of August during the last ten years, and 2-0757 below the average of that 

 period. 



Huston. — August 1. Cloudy : rain at night. 2 — 4. Cloudy. 5. Rain: 

 thunder and liuhtning a .m. : rain all day. 6. Foggy. 7. Fine: rain, with 

 thunder and lightning p.m. 8. (.'loudy. 9. Cloudy: rain at night. 



10, 1 1. Fine. 12. Cloudy. IS, 15. Fine. IG. Cloudy: heavy rain, with 

 thunder and lightning. 17. Cloudy: rain p.m. 18. Fine. 19. Stormy: 

 rain early a.m. 20. .Stormy: rain p.m. 21. Stormy. 22, 23. Fine. 

 24. Fine: rain P.M. 25,26.Fiiic. 27. Cloudy. 28— 30. Fine. 31. Cloudy. 



Meteoro- 



