Meteorological Observations. 319 



at the same time in contact with water, chlorate and carbonic acid, 

 without the air having access, it is gradually converted into white 

 lead, a fact which very much confirms M. Pelouze's theory of the 

 formation of this compound. 



A solution of chlorate of potash in water is therefore a powerful 

 oxidizing agent for neutral substances, abandoning both the oxygen 

 of its acid and that of its base. Its action may be compared to that 

 of air or weakly oxygenated water. This property will without 

 doubt find numerous applications. — Journ. de Pharm. for August. 



NEW BOOKS. 



A Series of Tables of the Elementary and Compound Bodies, 

 systematically arranged, and adapted as Tables of Equivalents, or as 

 Chemical Labels. By Charles Button and Warren De la Rue. 

 Part I. 



A Memoir of the Life, "Writings, and Mechanical Inventions of 

 Edmund Cartwright, D.D., F.R.S., Inventor of the Power Loom, 

 &c. &c. 



METEOROLOGICAL OBSERVATIONS FOR AUGUST 1843. 



Chiswick. — August 1. Very fine. 2. Cloudy and fine. 3. Cloudy: thunder, 

 storm, with very heavy rain, the latter continuing throughout the night. 4. Rain : 

 showery : clear. 5 — 8. Very fine. 9. Sultry : lightning at night. 10. Hazy: 

 clearandfine. 11 — 14. Exceedingly fine. 15. Sultry: thunder-storm at night. 

 16. Thunder, lightning and heavy rain : clear and fine at night. 17. Foggy : 

 sultry. 18. Foggy : hot and sultry : clear and fine. 19. Cloudless and very fine. 

 20. Overcast and fine. 21. Clear : cloudy and fine : clear. 22. Overcast : rain. 

 23. Fine : overcast : heavy rain at night. 24. Cloudy : clear and fine. 25. Very 

 fine : cloudy : lightning. 26, 27. Very fine. 28. Rain : overcast and windy. 

 29. Cloudy. 30. Light haze and fine. 31. Hazy : very fine : clear. — Mean 

 temperature of the month 1 0, 1 above the average. 



Boston. — Aug. 1. Cloudy. 2. Fine. 3. Fine : rain a.m. and p.m. 4. Cloudy : 

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

 thermometer 77° 2 o'clock p.m. 9. Cloudy : rain, thunder and lightning from 

 11 a.m. to 11 p.m. 10. Cloudy. 11 — 13. Fine. 14. Fine: rain, thunder and 

 lightning at night. 15. Rain: heavy thunder-storm a.m. 16. Cloudy: heavy 

 rain p.m. 17. Cloudy. 18. Foggy. 19. Fine. 20. Cloudy : rain p.m. with 

 thunder and lightning. 21. Fine. 22. Cloudy : rain p.m. 23. Fine. 24. Rain: 

 rain early a.m. 25 — 28. Fine. 29. Cloudy : rain early a.m. : rain a.m, 30,31. 

 Cloudy. — N.B. This month shows the largest fall of rain in one month since 

 July 1839. 



Sandwick Manse, Orkney. — Aug. 1. Cloudy: rain. 2. Cloudy: drops. 3. Fog: 

 cloudy. 4. Cloudy. 5. Bright : rain. 6. Bright : cloudy. 7. Cloudy : show- 

 ers. 8,9. Bright: clear. 10. Clear. 11, 12. Cloudy: clear. 13. Clear: 

 cloudy. 14. Bright : cloudy. 15. Clear. 16. Clear: fog. 17. Cloudy: show- 

 ers. 18. Damp: fog. 19. Bright: thunder. 20. Bright: cloudy. 21. Bright: 

 drops. 22. Cloudy : clear. 23, 24. Clear. 25. Bright : showers. 26. Clear : 

 thunder. 27. Thunder. 28. Showers : rain. 29. Showers : cloudy. 30. Drops : 

 cloudy. 31. Cloudy. 



Applegarth Manse, Dumfries-shire. — Aug. 1. Wet all day. 2. Very wet. 3. 

 Fair and fine. 4. Fine : one shower. 5. Fine. 6. Showers and sunshine. 

 7. Wet all day. 8. Wet. 9. Very clear and fine. 10. Very fine: one shower. 

 11. Very fine, but fair. 12, 13. Very fine. 14. Fine, but heavy rain p.m. 

 15. Fine, but fair. 16. Fine : fair : thunder p.m. 17,18. Fine. 19. Fine: 

 thunder. 20. Heavy showers a.m. 21. Fair a.m. : rain p.m. 22. Heavy rain. 

 23. Rain: cleared p.m. 24. Very fine. 25, 26. Rain. 27. Shower. 28. Heavy 

 showers. 29 — 31. Fair and fine. 



Temperature (mean) of spring-water 53° # 5 



Ditto August 1842 50 *7 



