Meteorological Observations. 



71 



bundle, the south pole is temporarily twisted in the same direction, 

 inverse currents are produced according as one or other of the two 

 bundles are twisted : — 



Consequently it is only necessary to add to the apparatus a com- 

 mutator, which reverses the direction of the current after each 

 semi-oscillation, to obtain, by means of turning vibrations, a con- 

 tinuous current, which may be rendered very intense. 



It appears to me that these facts will lead to the solution of im- 

 portant theoretical questions. I purpose to discuss them in a memoir 

 upon the torsion of solid bodies in general, with which I have long 

 been occupied. — Comptes RenduSy vol. xxxv. pp. 19, 702. 



METEOUOLOGICAL OBSERVATIONS FOR NOV. 1852. 



ChiswicJc. — November 1. Uniformly overcast : drizzly : slight rain. 2. Heavy 

 rain : clear. 3. Clear : heavy rain : clear. 4. Foggy : large white clouds : slight 

 rain. 5. Overcast : exceedingly fine : rain at night. 6. Rain : very fine : boisterous. 

 7. Cloudy and boisterous : rain : clear and windy. 8. Overcast. 9. Uniform 

 haze : overcast : clear. 10. Overcast. 11. Drizzly : rain : excessively heavy rain 

 at night. 12, Rain and boisterous throughout. 13. Uniformly overcast : foggy : 

 drizzly. 14. Rain : very fine : extraordinary heavy rain. 16. Barometer very 

 low: fine: rain at night. 17. Fine. 18. Densely clouded : fine: clear. 19. 

 Foggy : overcast. 20. Dense fog : constant rain. 21. Rain. 22. Densely over- 

 cast. 23. Fine : rain at night. 24. Overcast. 25. Foggy : fine : rain. 26. 

 Boisterous, with heavy rain. 27. Clear andfine. 28. Showery. 29,30. Overcast. 



Mean temperature of the month 47°*38 



Mean temperature of Nov. 1851 35 '86 



Mean temperature of Nov. for the last twenty-six years ... 43 '08 



Average amount of rain in Nov 2*30inches'. 



Boston. — Nov. 1. Fine. 2. Cloudy : rain a.m. and p.m. 3. Fine : rain a.m. 

 and P.M. 4. Fine. 5. Fine : rain a.m. 6. Fine : rain am. and p.m. 7. Cloudy : 

 rain A.M. 8. Fine : rain a.m. 9. Cloudy. 10. Fine. 11. Rain a.m. and p.m. 



12. Cloudy: rain a.m. 13. Cloudy: rain p.m. 14, 15. Rain a.m. and p.m. 

 16. Rain A.M. and P.M., with thunder and lightning 1 P.M. 17. Fine. 18. Fine : 

 rain a.m. 19, 20. Fine : rain p.m. 21. Rain a.m. and p.m. 22. Cloudy. 23. 

 Fine. 24. Cloudy. 25. Fine : rain p.m. 26. Cloudy : rain a.m. and p.m. 27. Fine. 

 28. Cloudy : rain p.m. 29. Fine : rain p.m. 30. Fine. 



Sandwick Manse, Orkney. — Nov. 1. Rain a.m. : clear, aurora p.m. 2. Bright 

 A.M. : drops p.m. 3. Cloudy a.m. : clear, aurora p.m. 4. Clear a.m. : clear, 

 aurora p.m. 5. Damp a.m. : rain p.m. 6. Bright a.m. : clear, aurora p.m. 

 7. Damp a.m. : showers p.m. 8 — 10. Showers a.m. and p.m. 11. Sleet- 

 showers A.M. : clear, aurora p.m. 12. Clear, frost a.m. : clear, aurora p.m. 



13. Clear, frost a.m. : showers, aurora p.m. 14. Clear, snow a.m. : clear p.m. 

 15. Snow-showers a.m. : rain p.m. 16. Rain a.m. : drizzle p.m. 17, 18. Cloudy 

 a.m. : showers p.m. 19. Clear a.m. : fine p.m. 20. Cloudy a.m. : fine, fog p.m. 

 21. Fine, frost A.M. : showers P.M. 22. Bright a.m. : showers p.m. 23. Showers 

 A.M. and p.m. 24. Bright a.m. : cloudy p.m. 25. Clear a.m. and p.m. 26. 

 Drizzle a.m. : cloudy p.m. 27. Sleet-showers a.m. and p.m. 28. Clear, frost a.m. : 

 snow-showers p.m. 29. Snow-showers a.m. and p.m. 30. Damp a.m. : rain p.m. 



Mean temperature of Nov. for twenty-five years 42°-60 



Mean temperature of this month 41*52 



Average quantity of rain in Nov. for six years 4-83 inches. 



On the 11th from 6*50 till 7*10 p.m. very red aurora. A bow in the southern 



hemisphere, from which it proceeded to the zenith, particularly from the ends 



towards the east and west. 



