Meteorological Observations. 71 



projecting permanent organs near the apertures, which are con- 

 stantly in motion, and they increase by horizontal spontaneous divi- 

 sion. Dr. Meyen, who is of the opposite opinion, mentions as the most 

 important observations in favour of their vegetable nature, that their 

 structure is exactly similar to that of the Conferva ; their formation of 

 seed and the development of this seed is like that of the Conferva. 

 The occurrence moreover of amylum in the interior of the Closterice 

 with which they are frequently nearly filled, is a striking proof of 

 their being plants ; they have no feet, — what Ehrenberg regards as 

 such are molecules having a spontaneous motion, which occur in 

 great number in Clos. Trabecula, and quite fill a canal the whole 

 length of the plant. Their function is difficult to determine, but they 

 also occur in very many Confervas, and may perhaps be compared 

 with the Spermotazoa of plants. 



METEOROLOGICAL OBSERVATIONS FOR JULY, 1839. 



Chiswick. — July 1 — 3. Fine. 4, 5. Very fine. 6. Sultry. 7. Hot : thunder 

 and much lightning at night, accompanied with unusually little rain. 8. Very 

 fine. 9 — 11. Fine. 12. Cloudy: slight rain. 13. Very fine. 14. Very fine : 

 rain. 15,16. Fine. 17. Slightly overcast : thunder and heavy rain at night. 

 18. Showery: windy. 19,20. Very boisterous. 21,22. Fine. 23. Showery. 

 24. Rain : fine. 25. Overcast. 26. Very heavy rain. 27. Heavy thunder 

 showers. 28. Cloudy. 29. Fine. 30, 31. Rain. 



Boston. — July]. Cloudy. 2. Cloudy: rain a.m. 3. Cloudy. 4. Fine. 

 5. Cloudy. 6. Fine. 7. Cloudy. S. Fine: rain, with thunder and lightning 

 a.m.: rain p.m. 9. Fine: rain, with thunder and lightning p.m. 10,11. Fine. 

 12. Fine: rain p.m. 13. Fine. 14. Fine; rain p.m. 15 — 17. Fine. 18. 

 Cloudy: stormy, with rain p.m. 19. Stormy. 20 — 23. Cloudy. 24. Cloudy: 

 rain early a.m. 25. Cloudy. 26. Cloudy: rain p.m. 27. Rain: rain early 

 a.m.: thunder and lightning p.m. 28. Fine: rain early a.m. 29. Fine: rain 

 p.m. 30. Cloudy: rain early a.m. : rain p.m. 31. Cloudy: rain early a.m. 



Applegarth Manse, Dumfries-shire. — July 1, 2. Very fine summer days : clear 

 sky. 3. Very hot. 4. Warm, but with a pleasant breeze. 5. The same : get- 

 ting cloudy p.m. 6. Slight showers all day. 7. Rain. 8. Slight showers 

 a.m.: cleared and was fine. 9. Showery. 10. Wet and stormy nearly all day. 

 11. Warm but cloudy : very wet p.m. 12. Heavy rain during night : showery : 

 flood. 13. Fine bracing air. 14. Showery a.m.: cleared up noon: cloudy 

 p.m. 15. Showery a.m. : cleared, and was fine. 16. Remarkably fine day. 

 17. Cloudy and threatening, and electrical. 18. Frequent heavy showers and 

 high wind. 19. Stormy day : rain nearly throughout. 20. Slight showers 

 all day : flood. 21. Pleasant bracing air: getting cloudy p.m. 22. The 

 same : a very slight shower. 23. Showery all day. 24. Showery a.m. : 

 cleared up p.m. 25. Very tine day: air warm and genial. 26. The same: 

 sultry p.m. : thunder. 27. Cooler: wind northerly : cloudy p.m. 28. Remark- 

 ably fine day. 29. Showery all day : distant thunder. 30. Fair and pleasant. 

 31. Slight shower a.m. 



Sun 25 days. Rain 17 days. Thunder 2 days. 



Wind southerly 23 days. Northerly 5 days. Westerly 1 day. Easterly 2 

 days. 



Calm 14 days. Moderate 7 days. Brisk 4 days. Strong breeze 3 days. 

 Boisterous 3 days. 



