Meteorological Observations. 159 



1 . On the density of the current ; 



2. On the proportions in which the different substances exist in 

 the fluid; 



3. On the nature of the electrodes ; 



4. On the greater or less facility with which one or the other sub- 

 stance can be carried from stratum to stratum within the fluid, as 

 well as on the obstacles which stand in the way of this transmission, 

 either in the shape of porous walls or in any other form. — Bericht, 

 der Akad. der Wiss. zu Berlin, 1856, p. 158. 



METEOROLOGICAL OBSERVATIONS FOR JUNE 1856. 



Chiswick. — 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, 



16. 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. 



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

 bright 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. 



