Meteorological Obswvations. 359 



and by the clefts in the woody layers, there is a distant resemblance 

 with the trunk of Ferns ; but the continuous peripheric growth is a 

 complete distinction. 5. The structure of the trunk of Cycas, in all 

 its peculiarities, more nearly resembles certain vegetables of a former 

 epoch than of the present. The author then compares the trunk of 

 Cycas with that of Zamia and Encephalartos, which have a single 

 woody cylinder,with or without medullary rays. — Silliman's American 

 Journal, Sept. 1846. 



NEW WORK ON ENTOMOLOGY. 



Mr. Westwood informs us that he intends commencing the pub- 

 lication of a new periodical work on the 1st of January, containing 

 coloured figures and descriptions of new rare and remarkable insects, 

 natives of India and the adjacent islands. 



METEOROLOGICAL OBSERVATIONS FOR SEPT. 1846. 



Chiswick. — September 1. Cloudy. 2, 3. Cloudless and hot. 4. Foggy: fine. 

 5. Very fine. 6. Cloudy. 7. Foggy : dusky haze. 8. Overcast. 9. Very fine. 

 10. Cloudy. 11—14. Very fine. 15. Slight fog: very fine. 16,17. Exceed- 

 ingly fine. 18. Cloudy. 19. Foggy : very fine. 20. Clear and dry air. 21, 



22. Cloudy. 23. Heavy rain. 24. Uniformly overcast : cloudy : overcast. 25. 

 Fine : cloudy : clear and fine. 26. Overcast : slight drizzle. 27. Cloudy and 

 fine: rain. 28. Rain. 29. Clear and cool : rain. 30. Slight fog : cloudy: 

 clear. 



Mean temperature of the month 60 o, 79 



Mean temperature of Sept. 1 845 52*60 



Mean temperature of Sept. for the last twenty years ... 57 *22 

 Average amount of rain in Sept 2-73 inches. 



Boston. — Sept. 1 — 3. Fine. 4, 5. Cloudy. 6. Cloudy : rain, with thunder 

 and lightning p.m. 7. Cloudy : 2 o'clock, thermometer 77°. 8. Cloudy. 9. 

 Cloudy: rain p.m. 10. Cloudy. 11. Fine. 12. Cloudy. 13—15. Fine. 

 16,17. Foggy. 18,19. Fine. 20,21. Cloudy. 22. Fine. 23. Cloudy : rain 

 early a.m. : rain a.m. 24. Foggy. 25, 26. Cloudy. 27. Fine : rain p.m. 28. 

 Cloudy. 29,30. Fine. 



Satuhvick Manse, Orkney. — Sept. 1 . Cloudy : rain. 2, 3. Cloudy. 4. Hazy : 

 cloudy. 5. Cloudy: fog. 6. Bright: fine. 7. Bright: fog. 8. Bright: clear: 

 aurora. 9. Bright : clear. 10. Bright : cloudy. 11. Drizzle: damp. 12. Fine: 

 cloudy. 13. Fog: drizzle. 14. Drizzle: damp. 15. Cloudy: drizzle. 16. Rain: 

 cloudy. 17. Clear: cloudy. 18. Bright: clear. 19. Bright: cloudy. 20. Bright: 

 cloudy: clear. 21. Bright: clear: aurora. 22. Bright: hoarfrost: clear: aurora S. 



23. Bright : cloudy. 24. Rain : cloudy: fog. 25. Clear: cloudy. 26. Cloudy. 

 27. Clear : cloudy : aurora. 28. Clear. 29. Cloudy : rain. 30. Bright : 

 cloudy. 



Applegarth Manse, Dumfries-shire. — Sept. 1, 2. Very fine harvest day. 3. Very 

 fine harvest day, but threatening. 4. Very fine harvest day : still cloudy. 5. Very 

 fine harvest day. 6. Very fine harvest day : thunder. 7. Very fine harvest day. 

 8. Rain a.m. : cleared p.m. 9 — 11. Fair and fine. 12. Fair and fine : thunder. 

 13. Fair and fine. 14,15. Fair and fine : fog. 16. Dull day : fog. 17. Dull 

 and threatening : fog. 18. Still fair, but cloudy. 19. Gentle rain p.m. 20. 

 Rain am. 21. Fair. 22. Fair, but dull. 23. Wet a.m. : lightning. 24. Rain. 

 25, 26. Showers. 27. Rain all day. 28. Showers : thunder. 29. Wet all day. 

 30. Fair and clear. 



Mean temperature of the month 59° # 6 



Mean temperature of Sept. 1845 52 *4 



Mean temperature of Sept. for 23 years 53 '0 



Mean rain in Sept. for 18 years S'25 inches. 



