Meteorological Observations. 479 



This analysis, and the properties of this substance, prove its iden- 

 tity with that which M. Laurent calls chrysene. 



White crystalline substance. — This is inodorous, insipid, scarcely 

 soluble in cold alcohol, very sparingly soluble in aether, but more so 

 than the preceding substance ; soluble [fusible ?] at 320° Fahr. ; 

 when heated in close vessels to above 576° Fahr. it is volatilized, a 

 small portion, however, is decomposed with a small residue of char- 

 coal ; it dissolves in the fixed and volatile oils, but the alkalies do 

 not act upon it. The mineral acids when cold do not attack it ; 

 when heated, sulphuric acid dissolves it, and assumes a deep blue 

 colour without any shade of green, and it is soon carbonized. If 

 before this effect is produced the acid be diluted, it becomes colour- 

 less, but recovers its colour by concentration ; by hot nitric acid it 

 is converted into a resinous matter. By analysis it yielded 



I. II. III. 



Hydrogen .... 5*6 5*8 5*5 



Carbon 95-6 95'3 95-8 



101-2 101-1 101-3 



From these results the authors are of opinion that this substance 

 is not merely isomeric, but identical with the idrialine of M . Dumas \ 

 and they propose to call it succisterene. — Ann. de Ch. et de Phys. ix. 

 89. 



METEOROLOGICAL OBSERVATIONS FOR OCTOBER 1843. 

 CMswick. — October 1. Fine : clear : overcast. 2. Overcast : showery. 3,4. 

 Cloudy and mild. 5. Very fine. 6. Densely clouded : rain. 7. Cloudy: rain. 



8. Boisterous : overcast. 9. Rain. 10. Clear : overcast : rain. 1 1 . Boisterous : 

 heavy rain. 12. Boisterous: rain. 13, 14. Clear: cloudy and fine. 15. Foggy: 

 cloudy : frosty and foggy. 1 6. Frosty : clear and cold : frosty. 1 7. Stormy, 

 with rain. 18. Cloudless: clear and frosty. 19. Frosty haze : clear: frosty. 

 20. Frosty haze : fine : cloudy. 21. Cloudy: showery : clear. 22. Cloudy and fine : 

 stormy at night. 23. Clear : cloudy : clear. 24. Densely clouded. 25. Cloudy : 

 clear. 26. Frosty : very fine : clear. 27. Very fine : boisterous, with rain at 

 night. 28. Boisterous : clear and fine. 29. Hazy : clear : foggy. 30. Hazy : 

 rain. 31. Heavy rain. — Mean temperature of the month 2§° below the average. 



JJoston. — Oct. I, 2. Cloudy : rain early a.m. 3. Fine. 4, 5. Cloudy. 6. 

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

 a.m.: rain a.m. 10. Fine. 11. Rain. 12. Rain and stormy. 13. Fine. 14. 

 Windy: ice this morning. 15,16. Fine. 17. Cloudy : rain early a.m. : stormy 

 night, with rain. 18 — 20. Fine. 21. Cloudy: rain early a.m. 22. Cloudy: 

 rain p.m. 23. Fine. 24. Fine: rain p.m. 25 — 27. Fine. 28. Stormy: rain 

 early a.m. 29. Fine. SO. Cloudy: rain early a.m. : rain p.m. 31. Cloudy. 



Sandwick Manse, Orkney. — Oct. 1. Showers. 2. Showers : clear. 3. Showers: 

 large hail. 4. Rain. 5. Drizzle. 6. Rain : showers. 7. Bright : showers. 

 8,9. Cloudy : clear. 10. Showers. 11. Frost : showers. 12. Showers : hail. 

 13. Large hail. 14. Bright: showers. 15, 16. Hail-showers. 17. Snow-showers: 

 clear frost. 18. Clear frost: showers. 19 — 21. Showers. 22. Clear frost : 

 showers. 23. Showers. 24. Showers : sleet : showers. 25. Showers. 26. 

 Showers : aurora. 27. Cloudy : rain. 28. Drizzle. 29. Showers. 30. Showers : 

 fine. 31. Showers : fine : clear. 



Applegarth Manse, Dumfries- shire. — Oct. 1. Cloudy : rain p.m. 2. Fine. 3. 

 Dull. 4. Cold : dull. 5. Fine : mild. 6. Wet, but mild. 7. Rain. 8. Showers. 



9. Clear: fair. 10. Dull : fair. 11. Wet. 12. Cold : snow on the hills. 13. 

 Cold : hail-shower. 14, 15. Fine and clear. 16. Fine : dry. 17. Rain and 

 sleet. 18. Fine: frosty. 19. Clear: fair. 20. Dull: wet p.m. 21. Clear and 

 sunny. 22. Very wet : cleared p. m. 23. Boisterous : showers, 24. Wet. 25, 

 26. Fine : frost a.m. 27. Fine. 28. Fair : chill. 29. Heavy rain. 30. Fair : 

 frost. 31. Wet : frost a.m. 



