Meteorological Observations for July 1830. 239 



General Observations. — To the 12th the weather continued showery, 

 windy, and cold, for the height of summer, so much so as to cause serious 

 apprehensions for the fate of the corn crops; but from that time to the end 

 of the month it was fine and dry, and on several days hot and sultry. This 

 providential change in the state of the atmosphere has in a short time 

 wrought wonders, it having stopped the growth of the straw, and matured 

 the wheat so as to make it fit for the sickle ; indeed the harvest com- 

 menced here on the 30th of July, and was in active operation the first week 

 in August. 



The trite assertion that it will be "all straw and no corn," is an egregious 

 falsehood; — a great quantity of straw there certainly is, but the wheat, 

 barley, and oats, in this and the adjoining counties will turn out full average 

 crops ; and in most grass-land places good second crops of hay are about 

 to be taken in. The only fear of a successful harvest is about the con- 

 tinuance of favourable weather, which it is sincerely hoped may hold up 

 till all the crops are secured. The weather, however, in changeable seasons 

 like the present one, should be studied, meteorological instruments often 

 referred to, and every favourable opportunity be eagerly seized by those 

 whose prosperity depends on it. 



The last eight days and nights were warm ; and on the 29th Fahrenheit's 

 thermometer in the shade rose to 84°, and to fever heat in the sun's rays, 

 — the hottest day since the 27th of June 1826. After the heat of the day, 

 much sheet-lightning emanated from the clouds from sunset till one o'clock 

 A.M. ; and also on the following evening. 



The mean temperature of the external air this month is three-quarters 

 of a degree under the mean of July for many years past. 



The atmospheric and meteoric phaenomena that have come within our 

 observations this month, are one solar halo, eight meteors, two rainbows, 

 and eleven gales of wind, namely, one from the North-east, two from the 

 South-east, one from the South, three from the South-west, three from 

 the West, and one from the North-west. 



REMARKS. 



London.— July 1. Fine in the morning: heavy rain at night. 2. Heavy 

 rain: sultry : cloudy at night. 3. Showery. 4. Fine. 5. Cloudy and calm. 

 6. Fine. 7. Rain, with brisk wind. 8. Fine: very dry: clear and cold 

 at night. 9. Cloudy: slight rain at night. 10. Fine. 11. Cloudy: rain. 

 12 — 16. Very fine. 17. Fine in the morning: rain. 18. Heavy rain. 19. 

 Cloudy. 20. Slight rain. 21 — 24. Fine; at times sultry and cloudy. 

 25 — 28. Very hot. 29. Very hot: cloudy at night: lightning and rain. 

 30. Sultry and very hot: rain at night. 31. Cloudy in the morning: clear 

 and fine at night. 



Penzance. — July 1. Rain. 2. Fair: rain. 3. Clear. 4. Fair. 5. Rain 

 at night. 6. Fair: rain. 7, 8. Fair. 9, 10. Clear. 11. Rain. 12. Clear. 

 13. Fair. 14. Clear : rain. 15. Fair. 16. Clear. 17. Rain. 18. Fair. 

 19. Clear. 20. Fair: misty. 21, 22. Fair : clear. 23. Fair. 24. Misty: 

 fair. 25. Fair: clear. 26 — 29. Clear. 30. Fair. 31. Clear. 



Boston. — July 1. Fine: rain at night. 2. Fine : rain p.m. 3, 4. Fine. 

 5. Cloudy. 6, 7. Fine: rain at night. 8,9. Cloudy: rain at night. 

 10,11. Cloudy. 12. Cloudy: rain early a.m. 13, 14. Fine. 15. Cloudy. 

 16, 17. Fine. 18. Stormy: rain early a.m. ditto forenoon. 19. Fine. 

 20 — 22. Cloudy. 23 — 29. Fine. 30. Fine : heavy rain, with thunder and 

 lightning p.m. 31. Cloudy. 



Meleoro. 



