Meteorological Observations. 175 



caproate of potash. An oily liquid separated, which was distilled 

 with an alcoholic solution of potash, and it yielded to the alkali a 

 certain quantity of cenanthylic acid. The alcoholic liquid yielded by 

 distillation a fluid, which, when mixed with water, gave an oil con- 

 taining caproyle C'"- H" (C=^ H=° ?). 



Caproyle is a colourless liquid which boils at 202°. It has but 

 little tendency to be altered by reagents. Concentrated sulphuric 

 acid and nitric acid of a moderate degree of concentration do not 

 alter it. It is slowly oxidized by a mixture of these two acids, and 

 is converted into caproic acid. — Journ. de Phartn. et deChim., De- 

 cembre 1850. 



METEOROLOGICAL OBSERVATIONS FOR DEC, 1850. 



Chiswick. — December 1. Slighlhaze: overcast: drizzly rain. 2,3. Overcast. 



4 — 6. Foggy. 7. Foggy : fine : dense fog. 8. Foggy. 9. Foggy : slight fog 



at night. 10. Foggy. II. Foggy: overcast. 12. Rain: cloudy and fine: 



foggy. 13. Very dense fog : cloudy and fine. 14. Clear : boisterous, with rain. 



15. Overcast : slight rain : warmer at night than at noon. 16. Clear : overcast. 



squally. 17. Clear : rain. 18. Frosty : fine : rain. 1 9. Foggy : overcast : clear . 



20. Frosty ; fine : frosty. 21. Frosty and foggy : slightrain at night. 22. Frosty : 



fine : foggy. 23. Frosty and foggy : hazy : foggy. 24. Hazy : foggy : overcast. 



25. Clear and very fine. 26. Hazy. 27. Overcast : exceedingly fine : overcast. 



28. Clear: very fine. 29. Fine. 30. Fine: cloudy: overcast. 31. Overcast: 



rain : drizzly. 



Mean temperature of the month 38°'47 



Mean temperature of Dec. 1849 37 -17 



Mean temperature of Dec. for the last twenty-four years ... 39-85 



Average amount of rain in Dec 1*58 inch. 



Boston. — Dec. 1. Fine. 2, 3. Cloudy. 4. Cloudy: rain a.m. and p.m. 5. 



Cloudy. 6. Fine. 7,8. Cloudy. 9. Foggy. 10—12. Cloudy. 13. Foggy. 



14. Fine : rain and hail P.M. 15. Cloudy : rain p.m. 16,17. Fine: rain p.m. 



15. Fine. 19. Rain : rain a.m. 20—23. Fine. 24. Cloudy. 25. Fine. 26. 

 Cloudy : rain A.M. and P.M. 27 — 31. Cloudy. 



Applegarth Manse, Dumfries-shire. — Dec. 1. Frost, hard: cloudy p.m. 2. Rain 

 and high winds all day. 3. Dull and moist : rain preceding night. 4. Mild: 

 rain heavy a.m. : fog. 5. Wet, though not heavily, all day. 6. Fair and fine : 

 moist p.m. 7. Frost a.m. : fog p.m. 8. Frost : fog all day. 9. Frost, hard : 

 clear and sharp. 10. Frost hard: barometer falling. 11. Fair a.m. : rain at 

 noon. 12. Fair and clear. 13. Heavy rain and high wind. 14. Heavy rain : 

 boisterous. 15. Fair, but cloudy and threatening. 16. Occasional dropping. 

 17. Moist : snow on the hills. 18. Frost keen : snow on the hills. 19, 20. Frost 

 hard. 21. Rain for twelve hours : cleared p.m. 22. Frost, raw : cloudy. 23. 

 Fair, but cloudy : shower p.m. 24. Rain : high wind p.m. 25. Fair and tem- 

 perate : wind strong. 26. Fair : preceding night wet. 27. Fair a.m. : shower p.m. 

 28. Fair and drying. 29. Driazling all day. 30. Rain very heavy. 31. Con- 

 tinued rain and high wind. 



Mean temperature of the month S9'''5 



Mean temperature of Dec. 1849 S7 'I 



Mean temperature of Dec. for twenty-eight years 38 '3 



Rain in Dec. 1849 4'20 inches. 



SanUwivl: Maine, Or/. nti/.— Dec. 1. Clear: hazy. 2. Rain: clear: aurora. 

 3,4. Clear. 5. Cloudy : rain. G. Cloudy : clear : aurora. 7. Fine. 8. Fine: 

 hoar-frost: fine : aurora. 9. Fog: clear. 10. Bright: drops. 11. Cloudy: 

 drops. 12. Bright: showers. 13. Cloudy: clear. 14. Clear: cloudy. 15 

 Bright : showers. 16. Showers: clear. 17. Sleet-showers. 18. Frost: clear 

 frost. 19. Showers : clear : frost. 20. Frost : rain. 21. Showers. 22. Hazy. 

 23. Hazy: damp. 24. Cloudy: fine: showers. 25. Showers : cloudy. 26. 

 Drizzle. 27, 28. Sleet-showers. 29. Cloudy : damp. 30. Showers : clear 

 showers. 31. Cloudy : showers. 



