Meteorological Observations. 79 



sulphuret of silver. The liquor was concentrated by exposure to the 

 air, and filtered to separate the sulphur which was deposited ; a little 

 potash was then added, and it was evaporated to dryness ; acetic acid 

 was added to saturate the excess of potash, and it was again dried. 

 To determine whether the saline residue contained a bromide, a 

 small portion of it was treated in a tube with pure nitric acid, and 

 a yellow liquid was immediately obtained. Another portion was 

 mixed with peroxide of manganese, and the mixture was placed in 

 a glass tube ; a few drops of concentrated sulphuric acid were added, 

 and when gently heated, red vapours were immediately disengaged, 

 and after some time there were deposited on the sides of the tube 

 small drops of a red liquid. The existence of bromine was there- 

 fore evident, and it was proved that the bromide was unmixed with 

 iodide. Bromide of silver appears to be rare at Huelgoeth ; but it 

 may be readily distinguished from the chloride by its greenish or 

 canary-yeUow colour, which is characteristic of it. It is remarkable 

 that it occurs with the chloride in the same specimens, but with- 

 out there being an intimate mixture of the two substances. — Ann. de 

 Chim. ct de Phys., Aoiit 1841. 



METEOROLOGICAL OBSERVATIONS FOR NOVEMBER 1841. 



Cliiswick. — November!. Rain. 2. Hazy: fine: foggy. 3,4. Foggy: hazy. 

 5. Hazy. 6 — 8. Hazy: very fine. 9. Overcast : windy at night. 10. Overcast 

 and fine. 11. Very fine. 12. Showery. 13. Cloudy: clear and fine: rain. 

 14. Rain: stormy: clear. 15. Frosty: hazy: sleet. 16. Frosty: clear. 17, 

 Sharp frost : clear. 18. Stormy with sleet : cloudy and cold. 19. Densely over- 

 cast : rain: clear. 20. Foggy: overcast. 21. Stormy with rain. 22. Rain: 

 clear at night. 23. Clear : overcast. 24,25. Clear and fine. 26. Frosty and 

 foggy. 27. Foggy : rain at night. 28. Hazy and damp : heavy rain at night. 

 29. Heavy rain. 30. Boisterous : barometer very low. 



Boston. — Nov. 1. Cloudy : rain P.M. 2. Cloudy. 3, 4. Foggy. 5, 6. Cloudy. 

 7 — 9. Fine. 10. Cloudy. 11. Fine: rain early a.m. 12. Cloudy: rain early 

 A.M. 13. Fine, 14. Stormy. 15—17. Fine. 18. Cloudy. 19. Snow and 

 stormy: rain a.m. and p.m. 20. Foggy: rain p.m. 21. Rain. 22. Fine: 

 rain P.M. 23 — 26. Fine. 27. Cloudy; rain early a.m. : rain p.m. 28. Cloudy. 

 29. Cloudy: rain early a.m. 30. Rain and stormy: rain early a.m. 



Sandwich Manse, Orkney. — Nov. 1. Cloudy: clear. 2. Frost a.m.: clear. 



3, 4. Clear. 5. Clear : aurora borealis. 6. Rain. 7, 8. Showers. 9. Rain. 10. 

 Clear shower: aurora borealis. 11. Cloudy. 12. Cloudy: rain. 13. Snow 

 showers. 14 — 17. Snow lying: showers. 18, 19. Snow lying. 20. Snow ly- 

 ing : rain. 21. Showers. 22. Rain. 23, 24. Fine. 25. Frost: clear. 26. 

 Showers. 27, 28. Frost. 29, 30. Rain . 



yipiilegarlh Manse, Dumfries- shire. — Nov. 1. Slight rain. 2. Hard frost. 3, 



4. Slight frost. 5. HI uist after frost. 6. Cloudy a.m.: rain p.m. 7,8. Dull: 

 showery p.m. 9,10. Dark and squally: rain p.m. 11. Showery but mild. 12. 

 Showery but boisterous. 13. ^;llowery: snow on hills. 14. Snow shower: frost 

 all day. 15. Hard frost. 16. Hard frost: clear and fine. 17. Hard frost: 

 cloudy. 18. Milder: slight snow. 19. Thaw: fine and mild. 20, 21. We^ 

 22. Fair but dull. 23, 24. Showery and squally. 25. Frosty and clear. 26. 

 Frosty but cloudy. 27. Rain. 28. Dri/zling. 29, .30. Very wet and squally. 



Sun shone out 20 days. Rain fell 17 days. Frost 9 days. Snow 2 days. 



Wind North 1 day. North-north-east 1 day. North east 5 days. East-north- 

 east 2 dnys. East G days. South-east 1 A day. South 2 da) s. South-south- 

 west 1 day. South-we^t 3.^ days. West-soulh-west 1 day. West 3 days. 'West- 

 north-west 1 day. North-west 1 day. North-north-west 1 day. 



Calm 9 days. Moderate 9 days, Brisk Q days. Strong breeze 4 days. Boiste- 

 rous 2 days. 



