Meteorological Observations. 191 



poured off as fast as it forms, so as to remain as short a time as 

 possible in the caustic ley. 



The only specimens which I have found not to give good results 

 by the method above described, are those from Tampa Bay, Florida, and 

 the infusorial marls from Barbadoes. In the masses from Tampa 

 the lapidification is so complete, that the alkali destroys the shells 

 before the lumps break up ; and in the case of the Barbadoes marls 

 the cementing material is calcareous, and requires a dilute acid for 

 its removal. In applying the above process one caution is necessary, 

 which is to thoroughly wash the shells with water, and not with 

 acids, as the latter will cause the deposit of a portion of the dissolved 

 silica and materially injure the beauty of the specimens. When the 

 washings are no longer alkaline, the specimens may be thoroughly 

 cleansed by acids, or by the chlorate process described above. — 

 — SillimarCs Journal, May 1856, p. 356. 



79 (b Jfi." 



/, , ,! JVIETEOllOLOGICAL OBSERVATIONS FOR JUNE 1856. 



Ckiswick. — June 1. Hazy: cloudy. 2,3. Very fine. 4, Very fine: cloudy: 

 lightning at night. 5 — 7. Very fine. 8. Dull and cloudy. 9, 10, Very fine. 

 11. Cloudless. 12. Very fine: rain at night. 13. Rain. 14. Showery and 

 boisterous. 15. Very fine : cloudy : clear and fine. 16. Very fine. 17. Showery, 

 18. Very fine : cloudy: rain. 19. Rain. 20. Showery. 21. Very fine : cloudy: 

 rain. 22. Cloudy and fine. 23. Overcast. 24. Very fine : uniformly overcast. 



25. Very fine. 26. Sultry. 27. Cloudless and hot.' 28. Uniformly overcast : 

 sultry : cold at night : range of temperature 45°. 29, 30. Clear and dry air. 



Mean temperature of the month 58°-65 



Mean temperature of June 1855 57 '98 



Mean temperature of June for the last thirty years 60 '31 



Average amount of rain in June 1*880 inch. 



Boston. — June 1. Cloudy: rain a.m. and p.m. 2 — 6. Fine. 7. Cloudy. 8 — 

 11. Fine. 12, Cloudy : rain p.m. 13, 14. Cloudy : rain a.m. and p.m. 15. Cloudy. 



10. Fine. 17. Rain a.m. 18. Cloudy. 19. Cloudy : rain a.m. 20. Cloudy. 

 21. Fine : rain p.m. 22. Cloudy : rain a.m. and p.m. 23, 24. Cloudy. 25. Fine. 



26. Cloudy : thermometer 86° p.m. 27. Fine : thunder p.m. 28. Cloudy. 29. 

 Fine. 30. Rain a.m. and p.m. 



Sandwick Manse, Orkney. — June 1. Cloudy a.m. : drizzle p.m. 2. Drizzle a.m. : 

 hright P.M. 3. Cloudy a.m. and p.m. 4. Cloudy a.m. : drops p.m. 5. Bright 

 a.m. : cloudy p.m. 6. Cloudy a.m. and p.m. 7. Rain a.m. : bright p.m. 8. Clear 

 a.m. and p.m. 9. Cloudy a.m. : drops, clear p.m. 10. Clear a.m.: showers p.m. 



11. Rain a.m. and p.m. 12, 13. Bright a.m. : clear, fine p.m. 14. Cloudy a.m. : 

 sleet-showers p.m. 15. Clear a.m.: cloudy p.m. 16. Showers a.m. : cloudy p.m. 

 17. Showers a.m. and p.m. 18. Bright a.m. : showers p.m. 19. Rain a.m. : 

 bright P.M. 20. Cloudy a.m. : bright p.m. 21. Rain a.m. : bright p.m. 22. 

 Bright A.M. and p.m. 23. Clear a.m. : cloudy p.m. 24. Fog a.m. : drizzle p.m. 

 25. Hazy a.m. : damp p.m. 26. Drops a.m. : rain, clear p.m. 27. Bright a.m. : 

 damp p.m. 28. Damp a.m. : showers p.m. 29,30. Clear a.m. : cloudy p.m. 



Mean temperature of June for previous twenty-nine years ... 52°'76 



Mean temperature of this month 51 '47 



Mean temperature of June 1855 52*23 



Average quantity of rain in June for previous sixteen years ... 2*24 inches. 



