Meteorological Observations. 239 



Errata in Mr. Babingtorfs Paper on Chara. 



P. 84. C. mucronata was found at West, not East Grinstead. 

 P. 91. C. aspera. Mr. Borrer did not find this nor any other 

 species at Carlton, Notts ; that station therefore must be erased. 

 P. 91. C. Iledwigii. For East read West Grinstead. 



METEOROLOGICAL OBSERVATIONS FOR JAN. 1850. 



Chiswick. — January 1. Sharp frost : fine : cloudy. 2. Hazy: fine. 3. Foggy: 

 hazy. 4. Foggy: overcast: clear. 5,6. Frosty: very fine: clear and frosty. 

 7. Sharp frost : clear : severe frost at night. 8. Frosty : overcast. 9. Slight fall 

 of granular snow : overcast. 10. Snowing slightly : overcast. 11. Hazy through- 

 out. 12. Slight snow : dusky: hazy. 13. Hazy: clear and frosty. 14, 15. 

 Cloudy and cold. 16,17. Densely overcast. 18. Foggy: snow at night, with 

 heavy rain. 19. Cloudy: drizzly. 20. Frosty. 21. Cloudy. 22. Hazy. 23. 

 Hazy : clear at night. 24. Foggy and drizzly. 25. Foggy : densely overcast : 

 rain at night. 26. Densely clouded : showery. 27. Sudden rise of barometer : 

 frosty : very fine. 28. Overcast. 29. Very fine : rain. 30. Foggy : very fir*e. 

 SI. Hazy and cold : heavy rain at night. 



Mean temperature of the month 33 0, 11 



Mean temperature of Jan. 1849 39 '56 



Mean temperature of Jan. for the last twenty-four years . 36 '60 



Average amount of rain in Jan 1*60 inch. 



Boston. — Jan. I. Fine. 2. Cloudy. 3,4. Cloudy: rain p.m. 5 — 8. Fine. 

 9 — 11. Cloudy. 12. Cloudy: snow a.m. 13. Fine. 14 — 17. Cloudy. 18. 

 Cloudy : snow and rain p.m. 19. Cloudy : rain early a.m. 20. Cloudy : snow a.m. 

 21,22. Cloudy. 23. Fine. 24. Cloudy. 25. Fine. 26. Cloudy: rain and 

 snow p.m. 27. Fine. 28. Cloudy. 29, 30. Fine. 31. Fine : rain p.m. — 

 N.B. This has been the coldest January since the year 1838. 



Applegarth Manse, Dumfries-shire. — Jan. 1. Frost : dull and threatening change. 

 2. Thaw : small rain. 3. Thaw : drizzle. 4. Slight frost early a.m. : rain and 

 wind p.m. 5. Snow half an inch deep : frost. 6. Frost very hard : snow lying. 

 7,8. Frost very hard. 9. Frost very hard: thermometer 11°. 10. Cloudy, 

 looking like change. 11. Cloudy, but still freezing. 12. Still slight frost, but 

 unsettled. 13. Frost still slight : cloudy. 14. Frost, slight a.m. : harder p.m. 



15. Bright and clear : hard frost : a little snow. 16. Frost : slight shower of snow : 

 looking dull. 17. Hard frost : clear : snow lying. 18. Hard frost, and heavy 

 snow 4 inches deep. 19. Frost not so hard : thaw p.m. : frost again. 20. Frost : 

 additional sprinkling of snow. 21. Frost hard again. 22. Frost moderate. 23. 

 Thaw : mild : cloudy. 24. Thaw : snow melting fast. 25. Rain in the night : 

 thaw continuing. 26. Thaw a.m.: came on to freeze at 6 p.m. 27. Hard 

 frost a.m. : thaw and rain p.m. 28. Heavy rain : snow nearly gone. 29. Slight 

 frost a.m. : keener p.m. 30. Frost moderate : snow all gone. 31. Slight shower 

 of snow a.m. : frost : rain p.m. 



Mean temperature of the month 30 o, 8 



Mean temperature of Jan. 1849 36 '3 



Mean temperature of Jan. for the last twenty-eight years . 34 *9 

 Average amount of rain in Jan. for the last twenty years . 2'60 inches. 



Sandwick Manse, Orkney. — Jan. 1. Cloudy. 2. Bright: fine: rain. 3. 

 Showers : sleet-showers. 4. Thunder: sleet-showers. 5. Thunder: showers. 

 6. Sleet-showers. 7. Sleet-showers : clear. 8. Cloudy. 9. Rain : cloudy. 10. 

 Cloudy : sleet-showers. 11. Cloudy : clear. 12. Snow- showers : cloudy. 13. 

 Cloudy: clear : frost : aurora. 14. Snow-showers : snow-drift. 15. Snow-drift. 



16. Snow-drift : snow : thaw. 17. Rain : clear : frost : aurora. 18. Clear : frost : 

 cloudy. 19. Snow-showers : cloudy : aurora. 20. Cloudy. 21. Cloudy : thaw. 

 22. Showers : drizzle. 23, 24. Drizzle. 25. Cloudy : snow-showers. 26. Snow - 

 showers : snow : clear. 27. Snow : frost : snow-showers. 28. Showers : drizzle. 

 29. Bright : large halo. 30. Fine : frost : clear : aurora. 31. Bright : rain. 



