Meteorological Observations. 319 



VANADIATE OF LEAD AND COPPER. 



M. Dufr^noy presented to the Academy, in the name of M. Do- 

 meyko, Professor of Chemistry and Mineralogy in the college of San 

 Yago, Chili, an account of this new mineral, which is composed of — 



Oxide of lead 54-9 



Oxide of copper 14'6 



Vanadic acid 1 3*5 



Arsenic acid 4*6 



Phosphoric acid 0*6 



Chloride of lead 0-3 



88-5 

 Comptes Rendus, Mai 5, 1847. 



METEOROLOGICAL OBSERVATIONS FOR AUG. 1847. 

 ChinvicL- — August 1, 2. Very fine : sultry. 3. Very fine : clear. 4. Very 

 fine : densely overcast. 5. Rain. 6. Overcast. 7. Very tine. 8. Very fine : 

 cloudy. 9. Cloudy: shower: clear. 10. Rain: showery. 11. Very fine. 

 12. Light clouds, with bright sun at intervals: clear at night. 13. Overcast: 

 very fine. 14, Very fine : cloudy. 15. Cloudy : clear : lightning at night. 16, 

 Rain. 17. Overcast. 18. Heavy rain. 19. Overcast: lightning at night. 

 20. Uniformly overcast : slight fog. 21. Slight fog : fine. 22. Overcast : rain : 

 cloudy. 23. Cloudy : rain. 24. Cloudy : clear at night. 25. Very fine. 26. 

 Overcast : very fine. 27, 28. Very fine. 29. Rain : very fine. 30. Very fine : 

 cloudy. 31. Very fine : clear at night. 



Mean temperature of the month 62^*68 



Mean temperature of Aug. 1846 64 •]6 



Mean temperature of Aug. for the last twenty years 62 -32 



Average amount of rain in Aug 2*41 inches, 



Boston. — Aug. 1. Fine : 2 o'clock p.m. thermonn.eter 83°. 2. Fine : rain p.m. 



3, 4. Fine. 5. Cloudy : rain p.m. 6. Fine. 7. Fine : rain p.m. 8. Fine. 

 9,10. Cloudy. 11. Cloudy : rain early A.M. 12. Cloudy. 13, 14. Pine. 15. 

 Cloudy. 16. Cloudy : rain a.m. and p.m. 17. Cloudy: rain p.m. 18, 19. Cloudy. 

 20— 25. Fine. 26. Cloudy. 27. Fine. 28. Rain. 29. Cloudy : rain early a.m. : 

 rain p.m. 30, 31. Cloudy. 



Sandivick Manse, Orkiiey. — Aug. 1, 2. Brijiht : clear. 3. Bright: cloudy. 



4. Cloudy : drops. 5. Bright : cloudy. 6. Cloudy : fine. 7. Rain : fine. 8. 

 Cloudy: rain. 9. Cloudy: fine. 10. Cloudy: rain. 11. Clear : showers. 

 12. Cloudy. 13. Clear : cloudy. 14. Cloudy : fine. 15. Bright : fine. 16, 

 17. Clear: fine. 18. Cloudy: fine. 19, 20. Cloudy. 21. Showers : rain. £2. 

 Cloudy : showers. 23. Clear : showers : cloudy. 24. Cloudy : rain. 25. Cloudy. 

 26. Cloudy : rain. 27. Cloudy : clear. 28, Bright : showers : clear. 29. Showers. 

 30. Rain : showers. 31. Bright: rain. 



Apjtlegarlh Manse, Dumfries-shire, — Aug. 1. Fair, but cloudy. 2. Fair and 

 fine: shower early A.M. 3. One slight shower. 4. Rain early a.m. 5. Rain 

 nearly all day. 6. Frequent showers. 7. Heavy showers and sUn. 8. Rain. 

 9. Cloudy : cool : dry, 10. Heavy rain. 11. Fine a.m. : rain p.m. 12. Rain 

 nearly all day. 13, Fair and fine. 14. Very fine. 15, 16. Very fine : heavy dew. 

 17. Fine, though cloudy. 18. Very fine. 19. Still fine, but dull. 20. Heavy 

 showers. 21. Slight showers. 22, 23. Fine : clear. 24. Rain p.m. 25, 26. Fine, 

 though cloudy. 27. Fine, though cloudy : a few drops. 28. Fine, though cloudy : 

 one slight shower, 29. Fair and fine, 30. Fine : one slight shower. 31. Fine 

 harvest day. 



Mean temperature of the month 57°'15 



Mean temperature of Aug. 1846 61 '2 



Mean temperature of Aug. for twenty-five years 57 '14 



Average rain for twenty years .,, 3*16 iOCbes, 



