Meteorological Observations. 287 



a. With four tentacles. 



20st Genus. — Sarsia (Lesson). 4 British sp. 



b. With one tentacle only developed. 

 21nd Genus. — Steenstrupia (new). 3 sp. 



In all there are fifty species of British Pulmograda known to Prof. 

 Forbes, excluding doubtful forms and varieties. Of these nine only 

 had been previously recorded as British, and of the remainder, all 

 but five are undescribed. 



METEOROLOGICAL OBSERVATIONS FOR AUG. 1846. 



Chiswick. — August I. Uniformly overcast: hot and dry: 2 p.m. almost con- 

 tinued thunder: at 3 p.m rain in torrents: at 4 h 40 m vivid lightning and rain, 

 mixed with large hail : overcast at night 2. Sultry: thunder and rain: clear. 

 3. Rain : showery. 4. Cloudy and fine. 5. Heavy rain. 6. Cloudy and fine. 



7. Overcast. 8,9. Cloudy and fine. 10,11. Very fine. 12. Rain : cloudy. 

 13. Cloudy : heavy rain. 14. Very fine. 15. Clear: fine: rain. 16, 17. Cloudy : 

 fine. 18. Fine : rain. 19. Fine : drizzly. 20. Overcast : rain. 21. Densely 

 clouded : rain. 22 — 25. Cloudy and fine. 26. Overcast. 27. Fine. 28 — 31. 

 Very fine. 



Mean temperature of the month 64°*16 



Mean temperature of Aug. 1845 59*30 



Average mean temperature of Aug. for the last twenty years 62 *2S 

 Average amount of rain in Aug 2*41 inches. 



Boston. — Aug. 1. Cloudy: rain p.m., with thunder and lightning. 2. Fine: 

 rain p.m. 3. Fine : rain, with thunder and lightning a.m. 4. Fine : rain and 

 lightning p.m. 5. Cloudy : rain p.m. 6, 7. Cloudy. 8. Fine. 9. Cloudy : 

 rain a.m. 10. Fine: rain p.m. 11,12. Fine. 13. Cloudy: whirlwind, with 

 rain a.m. 14. Fine. 15. Fine: rain a.m. 16. Fine. 17. Fine: rain early a.m. 

 18. Fine. 19. Rain. 20. Fine: rain a.m. and p.m. 21. Rain. 22. Cloudy. 

 23. Cloudy: rain p.m. 24— 27. Cloudy. 28. Fine. 29. Cloudy. 30, 31. Fine. 

 — The past month has been extraordinary warm. 



Sandwich Manse, Orkney. — Aug. 1. Cloudy: fine. 2. Fog: hot: fine. 3. Bright: 

 hot : fog. 4. Clear : hot : fog. 5. Bright : cloudy. 6. Fog : cloudy. 7. Cloudy. 



8. Bright : fog. 9. Fog : rain. 10. Bright: rain : clear. 11. Showers : clear. 

 12. Showers : cloudy. 13. Rain. 14. Bright : clear. 15. Rain. 16. Showers: 

 small rain. 17. Cloudy: fine. 18. Cloudy. 19. Bright : hot: fog. 20. Cloudy: 

 rain. 21. Cloudy: damp. 22. Damp : drizzle. 28. Cloudy. 24. Bright: 

 cloudy. 25. Clear : aurora : fine. 26. Clear : fine. 27. Clear : aurora : fine. 

 28. Clear: fog. 29. Cloudy. 30. Bright : rain. 31. Rain : clear. 



Mean temperature of the month 58 0, 82 



Mean temperature of Aug. for nineteen preceding years 54 *76 



Mean temperature of Aug. 1845 53 *16 



Applegarlh Manse, Dumfries- shire. — Aug. 1. Remarkably warm. 2. Very fine. 

 3. Very fine : thunder. 4. Fine : one shower. 5. Heavy shower : fine. 6. Fair 

 and fine. 7. Rain, heavy : thunder. 8. Wet: thunder. 9. Wet p.m. : fair a.m. 

 10. Showers. 11,12. Slight showers. 1 3. Very heavy rain : flood. 14. Fine: 

 one shower. 15. Showers p.m. 16. Wet a.m. : cleared. 17. Very fine harvest 

 day. 18. Rain nearly all day. 19. Fine harvest day. 20. Fine harvest day : 

 thunder. 21 — 23. Fine harvest days. 24,25. Fine harvest days : threatening. 

 26, 27. Fine harvest days : clear. 28, 29. Fine harvest days : threatening. 30. 

 Fine harvest day. 31. Rain : cleared p.m. 



Mean temperature of the month 61°'£5 



Mean temperature of Aug. 1845 56 *4 



Mean temperature of Aug. for twenty-three years 57 '0 



Mean rain in Aug. for eighteen years 3*61 inches. 



