Meteorological Observations. 415 



results of which are perchlorlde of tin, and yellow, earthy subchlo- 

 ride of tin, which remains in the distilling apparatus. When in a 

 state of fusion it has a great tendency to penetrate the crucibles. 



It dissolves in water without undergoing any immediate change ; 

 but the liquor remains clear only for a short time, and soon beco- 

 ming turbid, it deposits oxychloride of tin. After a considerable time, 

 in contact with the air, the oxychloride dissolves and the liquor be- 

 comes clear and transparent. 



Absolute alcohol dissolves it very readily, and more when hot than 

 cold ; by cooling, the solution becomes syrupy. After some time the 

 solution acquires a distinct odour of hydrochloric aether. When ex- 

 posed to the air it long retains its property of precipitating the 

 chloride of gold purple, and it does not become turbid. The proto- 

 chloride of tin when anhydrous, is much less alterable by exposure 

 to the air than when it contains water ; indeed unless it be hydrated 

 it does not appear to absorb oxygen ; after three weeks' exposure it 

 remains completely soluble in water. — Journal de Pharmacie, Sep- 

 tember, 1839. 



METEOROLOGICAL OBSERVATIONS FOR SEPT., 1839. 



Chiswick. — Sept.!. Cloudy: boisterous. 2. Showery. 3. Fine: rain: fine 



at night, with splendid Aurora borealis. 4. Very fine : rain. 5. Rain. 6. 



Very fine : rain. 7. Fine : cloudy : very boisterous : almost a hurricane at 



night. 8. Fine. 9. Hazy: very fine. 10. Foggy: fine. 11, 12. Overcast. 



13. Clear and fine. 14. Heavy rain. 15. Showery. 16. Rain. 17. Very 

 heavy rain. 18. Showery. 19. Overcast: clear. 20. Very fine. 21. Rain: 

 cloudy : rain at night. 23. Foggy. 24. Cloudy. 25. Showery. 26. Very 

 fine. 27. Cloudy and fine : slight rain. 28. Drizzly. 29. Heavy dew : fine. 

 SO. Fine. 



The quantity 'of rain which fell in this month, amounting to little short of 4 

 inches, may be reckoned as double an average quantity. 



Boston. — Sept. 1. Stormy: rain a.m. 2. Fine: rain a.m. 3. Cloudy: rain 

 A.M. and P.M. 4. Fine. 5. Cloudy: rain early a.m. : rain p.m. 6. Fine. 

 7. Stormy : rain p.m. 8. Stormy : rain early a.m. 9. Cloudy. 10. Fine. 

 11. Cloudy: rain early a.m. 12. Cloudy: rain a.m. IS. Fine: rain p.m. 



14. Cloudy : rain early a.m. 15, 16. Cloudy : rain early a.m. : rain p.m. 17, 

 18. Fine: rain early a.m. 19. Fine: rain early p.m. 20. Fine. 21—23. 

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

 29,30. Fine. 



Applegarlh Manse, Dumfries-shire. — Sept. 1 . Heavy showers all day. 2. Occa- 

 sional showers, 3. Warm and close. 4. Occasional showers, with gleams of 

 sunshine. 5. Unceasing rain. 6. Dull but fair : shower in evening. 7. Al- 

 most constant rain : flood. 8. Rain began at noon : all day. 9. Rain greater 

 part of the day. 10. Very fine day: pleasant breeze. 11. Fine day, but 

 cloudy. 12. Fair till noon, when it rained. 13. Showery. 14. Stormy: 

 wind and rain all day. 15. Moderate, with frequent showers. 16. Fair till af- 

 ternoon, when it rained. 17. Showery, with intervals fair. 18. Showery all 

 day. 19,20. Fine a.m. : showery p.m. 21. Fair and calm : distant thunder. 

 22. Fine harvest day : slight shower p.m. 23. The same : no rain. 24. Fine 

 a.m. : rain p.m. 25. Heavy rain morning : cleared up. 26. Frequent showers. 

 27, 28. Continued succession of heavy showers. 29. Fine harvest day : one 

 slight shower. 30. Calm : dry and sunny. 



Sun 25 days. Rain 24 days. Thunder 1 day. 



Wind south 1 1 days. South-east 5 days. South-west 8§ days. West 5 days. 

 West-north-west 1 day. East 3 days. North ^ df.y. Variable 1 day. 



Calm 8 days. Moderate 1 1 days. Brisk 3 days. Variable 1 day. I Strong 

 breeze 5 days. Boisterous 2 days. 



