Meteorological Observations. 367 



but justifying his own remark,—" It is probable that many of the 



species here indicated may have a much more extended range." 



Species, according to Mr. Gray's Table, confined to the southern 

 half of the kingdom, all of which I have found at York, during 

 my residence there : — 



Paludina vivipara. 



■ achatina, near Doncaster. 



Bithinia ventricosa. 



Neretina fluviatilis. Dorsetshire is mentioned, on Montagu's au- 

 thority, as the western limit of this shell, but I have taken it 

 in the river Exe, and known it to be found in the south of 

 Ireland. 



Planorbis corneus. 



Cyclas rivicola, mentioned as almost confined to the Thames, but I 

 have taken it abundantly at York, and I have it also from Lan- 

 cashire. 



Unio tumidus, near York. 



Species enumerated as being only observed in the north, but also 



found to my knowledge in the south : — 

 Helix lamellata, abundant near Cork. 

 Zonites purus, near Cork. 

 excavatus, near Cork, 



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 12^ 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. 27—30. Very fine. 31. Hot and dry : 

 cloudless. 



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

 early a.m. : lain 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. 



Apple garth 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. 

 Rain 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. 



