Meteorological Observations, 4"31 



are flanked by ranges of limestone hills, similar in character to those 

 below on the tierra templada. Undoubtedly the range which bounds 

 the plains of Anahuac to the east is very rich in fhineral treasure, 

 as specimens of silver ore are frequently brought in by the Indians, 

 but they, like those of Peru, conceal their knowledge of the localities 

 with the utmost care. About three leagues from Perote I saw a vein 

 of sulphuret of silver three feet in width, associated with blende and 

 sulphate of copper. — Pi^oceedinys of the Academy of Natural Sciences 

 of Philadelphia, vol. iv. p. 91. 



METEOROLOGICAL OBSERVATIONS FOR MARCH 1849. 



Chiswick. — March 1. Cloudy: clear and windy: cloudy. 2. Fine: cloudy: 

 clear. 3. Overcast. 4. Clear: cloudy and fine : clear. 5. Fhie : frosty. 6. 

 Frosty : fine : overcast. 7. Cloudy: boisterous, with rain at night. 8. Fine : 

 hail-shower : clear and frosty at night. 9. Clear and frosty : very fine : slight 

 snow. 10. Clear: cloudy. 11> 12. Overcast throughout. 13. Fine. 14. Cold 

 dusky haze. 15, 16. Overcast. 17. Foggy: fine: clear. 18. Foggy, with heavy 

 dew: hazy: foggy and damp. 19. Foggy: overcast. 20. Dusky haze : over- 

 cast : clear. 21. Overcast : clear. 22. Foggy : cold haze : overcast. 23. Over- 

 cast : cold haze : densely overcast. 24. Fine, but cold : clear and frosty at night. 

 25. Snowing : cloudy and cold : overcast. 26. Densely clouded. 27. Dry haze. 

 28. Foggy : overcast throughout. 29. Hazy : rain : cloudy. 30. Heavy showers. 

 31. Clear: fine : cloudy. 



Mean temperature of the month 41°-56 



Mean temperature of March 1848 , 42-43 



Mean temperature of March for the last twenty years 42 '62 



Average amount of rain in March l'36inch. 



Boston. — March 1. Cloudy: rain a.m. and stormy. 2. Cloudy. 3. Fine. 

 4. Cloudy. 5,6. Fine. 7. Fine: rain p.m. 8. Cloudy: snow p.m. 9, 10. 

 Fine. 11. Cloudy. 12. Fine. 13. Fine : rain early a.m. 14 — 16. Cloudy. 

 17. Fine. 18, 19. Foggy. 20 — 22. Cloudy. 23. Cloudy: rain p.m. 24. Snow. 

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

 rain p.m. 30, 31. Fine; rain p.m. 



Applegarth Manse, Dumfries -shire. — March 1. Fair and clear a.m.: getting 

 cloudy: rain p.m. 2. Fair a.m.: showers. 3. Fair: wind rising. 4. Fair: 

 cloudy : fine sunset. 5. Sh'ght shower : cleared. 6. Fair : cloudy : high 

 wind P.M. 7. Rain all day, but light. 8. Frost hard : clear all day. 9. Frost 

 keen. 10. Frost increasing in keenness. 11. Frost slight : shower. 12. Fine 

 spring morning : got colder. 13 — 17. Fine dry weather. 18. Very fine day. 

 19. Still finer, like May. 20. The same, beautiful weather. 21. The same : 

 fog P.M. 22. Frost during the night: fine day. 23, 24. Fine, though dull. 

 25. The same : brighter. 26. Frost: dull p.m. 27. The same dullness : no frost. 

 28. Clear and cool. 29. Shower early. 30. Showery. 31. Slight drops of rain : 

 slight frost. 



Mean temperature of the month 41°'8 



Mean temperature of March 1848 41 "2 



Mean temperature of March for twenty-five years 39 '1 



Rain in March 1848 4-1 inches. 



Rain in March for twenty years 2*3 „ 



Sandwich Manse, Orkney. — March I. Bright : hail : light showers. 2. Cloudy : 

 showers. 3. Cloudy: clear. 4. Clear : showers. 5. Sleet: showers. 6. Showei-s. 

 7. Sleet: snow-showers, 8. Snow-shovvers. 9. Drift: snow-showers. 10. 

 Thaw : showers. 11. Rain: drizzle. 12. Cloudy: snow. 13. Snow-showers: 

 thaw. 14. Drizzle. 15. Fog : damp. 16. Fog: fine. 17. B'ine: fog, 18, 

 19. Fog. 20. Fine: clear aurora. 21. Fine : cloudy. 22. Fog : cloudy. 23. 

 Rain. 24. Damp : drizzle. 25. Drizzle : aurora. 26. Sleet-showers : clear 

 aurora. 27. Cloudy : showers. 28. Cloudy : clear aurora. 29. Cloudy. SO. 

 showers. 31. Damp: clear. 



