Meteorological Observations. 



79 



lie, or even we believe instituted, with the Actinometer, an instru- 

 ment which we are glad to see appreciated by distant observers. 



METEOROLOGICAL OBSERVATIONS FOR MAY, 1840. 

 Chiswick. May 1. Slight haze : fine. 2 4. Hot and dry with easterly wind. 



5. Overcast. 6, 7. Slight haze. 8. Heavy showers : fine. 9. Rain with sultry 

 intervals. 10. Cloudy: sultry. 11. Drizzly. 12. Overcast. 13. Rain: sultry. 



14. Cloudy and fine. 15. Heavy rain with thunder. 16. Cloudy : showery : 

 hail shower at 12j P.M. 17. Rain. 18. Cloudy and fine: rain. 19, 20. Cloudy 

 and cold. 21. Clear and cold. 22. Overcast. 23. Clear and fine. 24. Over- 

 cast : rain. 25. Cloudy. 26. Rain. 2730. Very fine. 31. Hot and dry : 

 cloudless. 



Boston, May 1. Cloudy. 2 4. Fine. 5,6. Cloudy. 7,8. Cloudy: rain 

 early A.M. : rain P.M. 9. Rain: rain early A.M. 10. Cloudy: rain early A.M. 

 11. Rain : rain early A.M. 12. Cloudy : rain early A.M. 13. Rain. 14. Cloudy : 

 rain with thunder and lightning P.M. 15. Rain. 16,17. Cloudy: rain A.M. 

 and P.M. 18, 19. Cloudy. 20. Cloudy : rain P.M. 21, 22. Stormy. 23, 24. 

 Cloudy. 25. Stormy : rain A.M. 26. Rain : rain A.M. 27. Cloudy. 28. Fine. 

 29. Stormy. 30, 31. Fine. 



Applegarlh Manse, Dumfries-shire. May 1, 2. Beautiful day. 3. The same : 

 Thermometer in shade 75. 4. Very dry and warm till P.M. 5. Very droughty. 



6. The same increased : cloudy. 7. Slight showers all day. 8. The same A.M.: 

 cleared up. 9. Slight showers early A.M. 10. The same : thunder P.M. 11. 

 Rain heavier. 12. Rain nearly all day. 13. Fair. 14. Showery P.M. : thunder. 



15. Occasional showers : thunder. 16. Rain preceding night: clear day. 17. 

 Bain in the night : fair. 18. Fresh and cool. 19. Dry and rather boisterous. 

 20. Dry and more moderate. 21. Very droughty : clear sky. 22. Calm and 

 warm. 23. Showery : high wind. 24. Showery. 25. Showery, and very high 

 wind. 26. Fresh and showery. 27. Fine A.M. : wet P.M. 28. Very wet till 

 P.M. 29, 30. Fine growing day. 31. Variable : bright at midday: wet evening. 



