^i'i'^'i^\M€t€6rOlogical Obsei'vations. ^^^'^ 4^^ 



jvkced in k ^all glass balloon hermetically closed. It is not ne- 

 cessary to make a vacuum in this, because the little oxygen which 

 it contains is very quickly absorbed by the incandescent coke ; but 

 care must be taken to intercept entirely all communication with the 

 external air. With regard to the battery, it is adjusted on the 

 outside of the balloon to two metallic stems, which communicate, 

 one with the coke cylinder, the other with the metallic conductor. 

 It can be changed or charged anew without altering anything in 

 the internal arrangement. 



According to the strength of the battery, it is well to employ two 

 points or two cylinders of coke, rather than a single one to a 

 metallic conductor. The preparation of the coke is also A'ery im- 

 portant; I have made several experiments on this subject, but I 

 am not as yet completely satisfied. — Comptes rendus, Sept. 15th. 



jg 



METEOROLOGICAL OBSERVATIONS FOR SEPT. 1845. 



Cliiswick. — September 1. Thick haze : fine. 2, .S. Overcast. 4. Dense dark 

 clouds : clear. 5. Cold and overcast. 6. Hazy : fine. 7. Cloudless and very 

 fine, 8. Foggy : clear and fine. 9. Foggy, clear. 10. Foggy: uniformly 

 overcast : slight rdin. 11. Overcast throughout. 12. Slight haze : clear. 13. 

 Thick fog: very fine. 14. Densely overcast : showery. 15. Hazy: very heavy 

 rain: clear at night. 16. Thickly overcast : heavy rain : boisterous at night. 



17. Overcast: rain: boisterous throughout. 18. Very boisterous, with showers: 

 clear at night. 19. Boisterous. 20. Fine: rain at night. 21. Densely overcast : 

 rain. 22. Clear : partially overcast and fine. 23. Cloudy : frosty at night. 



24. Clear and frosty : very fine, with bright sun: clear. 25. Densely overcast : 

 drizzly. 26. Slight haze : cloudless and fine. 27. Uniformly overcast : slight 

 drizzle : rain at night. 28. Cloudy throughout : clear. 29. Densely overcast : 

 rain. SO. Cloudy and fine. — Mean temperature of the month 4^° below the 

 average. 



Boston. — Sept. 1 — 5. Cloudy. 6—9. Fine. 10, 11. Cloudy. 12. Fine. 

 13. Fo^y. 14. liain: rain early a.m. 15. Cloudy: rain, with thunder and 

 lightning P.M. 16. Fine : rain early a.m. 17. Rain : rain early a.m. 18. Cloudy. 

 19. Windy. 20. Fine. 21. Cloudy : rain early a.m. : rain p.m. 22. Cloudy: 

 rain early a.m. 23, 24. Fine. 25. Cloudy. 26. Fine. 27. Cloudy : rain a.m. 

 28. Cloudy. 29, .30. Fine. 



Sandivick Manse, Orkjiey. — Sept. 1. Haze: clear. 2. Clear. 3, Cloudy*: clear. 

 4. Cloudy. 5. Clear. 6. Fog : cloudy. 7. Bright : cloudy. 8. Rain. 9. 

 Damp. 10. Fine: clear. 11. Bright: clear. 12. Cloudy. 13. Bright: cloudy. 

 J4. Damp: clear. 15. Cloudy: clear. 16. Bright: clear. 17. Bright: cloudy. 



18. Rain : cloudy. 19. Bright : clear. 20. Bright : cloudy. 21,22. Showers: 

 cloudy. 23. Bright: cloudy. 24. Cloudy. 25. Rain : clear : aurora borealis. 

 26, 27. Showers. 28. Hail-showers : showers : sleet. 29. Showers. 30. Cloudy : 

 showers. 



j4pplegarth Manse, Dumfries-shire. — Sept. 1 — 4. Fine, though cloudy. 5. Fine, 

 but clear. 6. Fair, but cloudy. 7. Fair and clear : raw frost. 8. Fair, but 

 cloudy. 9. Rain all day. 10. Fair, but cloudy. 11. Fair and fine. 12. Very 

 fine. 13. Moist and cloudy. 14. Showers. 15. Hoar-frost : shower a.m. 16. 

 Fair, but cloudy. 17. Heavy rain. 18. Very heavy rain. 19,20. Rain p.m. 

 21. Fair and drying. 22,23. Very fine : hoar-frost. 24. Wet a.m. : cleared up. 



25, 26. Fair and clear. 27, 28, Heavy rain. 29, 30. Showers p.m. ?i3 

 n ■ ^, Mean temperature of the month ,|.,.^.^.,.j..,.y,,,y. ;§g.°"^, , osjSCf 



ibidw ?.j!Tora3ai;iIiij xllcJdm orb brtc lalixiilYo a.Ioo arij ,y-B8 u3 ar 

 * This morning there was a fall oif ashes ovcr'all>iDrktiey'ii)iipiB%ntly Volcanic; 

 and supposed to be wafted from Iceland. 



