458 Meteorological Observations. 



in lieu of 



l^D-— A'D+!lJL''D- 1 -JLJV'D + ..; 

 c r c* r c* r c* Y 



which involves a similar correction for the formula at the bottom of 



page 355. 



I observe, also, that the mode of obtaining the coefficients of 



given at the beginning of page 362 is erroneous, and in lieu of it 

 the usual well-known methods should be applied. 



This does not require any change in the results of the paper. 

 I am, Gentlemen, 



Your obedient Servant, 



C. J. Hargbeave. 





METEOROLOGICAL OBSERVATIONS FOR OCT. 1853. 



Chiswiek. — October 1. Heavy clouds : clear. 2, 3. Clear and fine : frosty at 

 nights. 4. Rain. 5. Constant rain. 6. Dense fog. 7. Hazy and damp : fine : 

 rain. 8. Rain: fine: clear. 9. Foggy: fine. 10. Very fine. 11. Fine. 12. 

 Rain. 13. Hazy: rain. 14. Foggy : very fine. 15. Fine : cloudy : rain at night. 

 16, 17. Rain. 18. Clear and fine. 19. Heavy rain. 20. Fine. 21. Rain. 22. 

 Rain : fine. 23. Densely overcast : cloudy and fine. 24, 25. Fine. 26. Very 

 fine: rain at night. 27. Cloudy: overcast: lightning in the evening : rain. 28. 

 Cloudy and fine : rain. 29. Cloudy and fine : clear. 30. Foggy : clear. 31. Very 

 fine. 



Mean temperature of the month 49°*99 



Mean temperature of October 1852 46 -22 



Mean temperature of Oct. for the last twenty-seven years . 50 *06 

 Average amount of rain in Oct 2*64 inches. 



Boston. — Oct. 1. Cloudy: rain a.m. 2. Fine: rain p.m. 3. Fine. 4. Rain 

 a.m. 5. Cloudy : rain a.m. and p.m. 6. Rain a.m. 7. Cloudy. 8. Cloudy : 

 rain a.m. and p.m. 9. Cloudy. 10. Fine: rain p.m. 11. Cloudy: rain a.m. 

 and p.m. 12. Cloudy : rain a.m. 13, 14. Cloudy : rain p.m. 15. Cloudy. 16. 

 Rain a.m. and p.m. 17. Cloudy : rain a.m. and p.m. 18. Cloudy. 19. Cloudy : 

 rain a.m. and p.m. 20. Cloudy. 21. Cloudy : rain a.m. 22. Fine. 23, 24. 

 Cloudy. 25. Foggy. 26. Cloudy : rain p.m. 27. Cloudy. 28. Cloudy : rain a.m. 

 29. Cloudy. 30, 31. Fine. 



Sandwick Manse, Orkney. — Oct. 1. Showers a.m. and p.m. 2, 3. Sleet-showers 

 a.m. and r.M. 4. Rain a.m. : showers p.m. 5. Showers a.m. : drizzle p.m. 6. 

 Bright a.m. : cloudy p.m. 7. Drizzle a.m. : rain p.m. 8, 9. Damp a.m. and p.m. 

 10. Cloudy a.m. and p.m. 11. Showers a.m. : cloudy p.m. 12. Cloudy a.m. : 

 damp p.m. 13. Cloudy a.m. and p.m. 14. Cloudy a.m. : showers p.m. 15. 

 Bright a.m. : showers p.m. 16, 17. Showers a.m. and p.m. 18. Showers a.m. : 

 bright p.m. 19. Cloudy a.m. : rain p.m. 20. Clear a.m. : showers, aurora p.m. 

 21. Rain a.m. and p.m. 22. Clear a.m. t showers p.m. 23. Clear a.m. : showers, 

 aurora p.m. 24. Cloudy a.m. : drizzle p.m. 25, 26. Cloudy a.m. : rain p.m. 27. 

 Bright a.m. : clear, aurora p.m. 28. Cloudy a.m. and p.m. 29. Bright a.m. : 

 cloudy p.m. 30. Clear, fine a.m. : cloudy p.m. 31. Rain a.m.: showers p.m. 



Mean temperature of Oct. for twenty-six previous years 47°'64 



Mean temperature of this month 48-66 



Mean temperature of Oct. 1852 46-88 



Average quantity of rain in Oct. for thirteen previous years . 4*99 inches. 



