506 ^ Meteorological Observations. 



~ sch^rer's collection of lichens. 



^- ^' ' We are informed by M. Guthnick, Director of the Botanic Garden 



'- - at Berne, that the private collection of Lichens belonging to the late 



',! 2 , Pastor Schserer has been sold to M. Edmund Boissier of Geneva. 



He states that there still remain for sale the collections which 

 . * """^erved as the basis of Schaerer's *Lichenes Helvetic! Exsiccati,' 

 <:; " amounting to 650 species or varieties, of each one of which, with a 

 few exceptions, there are from 10 to 50 specimens. This rich col- 

 lection has been valued by Mr. Shuttleworth and himself at 1500 



:B- -Fr^^^ch francs, which he considers ** beaucoup au-dessous de leur 



» ^ yaleur,'* — and from which sum a small abatement would be made to 

 • ^ ^ ' a purchaser. He is desirous that a number of British botanists 

 r~" should join together to purchase, and is open to offers. 

 i ^ M. Guthnick also states, that he can supply Schaerer's * Lich. Helv. 

 ~" ^xsic.,* thirteen volumes, at 1 2 French francs per volume. 



O -^ --1 "^ C^-h •■>-' • 



Z-^'^t^ ^METEOROLOGICAL OBSERVATIONS FOR APRIL 1854. 



f^c Chiswick.—A]}Ti\ I, 2. Very fine. 3. Fine: clear: frosty. 4. Slight haze: 

 o'^^'^cloudless : very clear. 5. Very fine. 6. Foggy: very fine. 7 — 9. Very fine. 



40. Foggy: cold haze. 11. Hazy: fine: clear. 12. Cold haze: very dry air : 



d^/o jpartially overcast. 13. Dry haze: fine: clear. 14,15. Very fine. 16. Quite 

 '*' ^ "clear : very fine : overcast. 17. Light clouds : fine : clear. 18. Slight haze : fine : 

 very clear. 19. Slight haze : cloudless. 20. Very fine. 21. Cloudy. 22. Uni- 

 ^ ,C2 .C|ormly overcast : drizzling rain. 23. Cloudy and cold, with dry air : boisterous: i - :;. 



Ivery clear. 24. Cloudless : masses of white clouds formed in the forenoon : ex- J ^ f^ 



cessively dry air : very clear : severe and destructive black frost at night. 25. Light ■ -- '' 

 .^ ., .clouds :'very dry air : clear. 26. Overcast. 27. Showery. 28. Cloudy and cold : 

 ^^. Very clear. 29. Rain : cloudy : clear. 30. Rain : cloudy : overcast. — The frost 

 S^'S ©n the 24th was more severe than in any April for at least thirty previous years. 



Mean temperature of the month 47°"53 



_ Mean temperature of April 1853 45-44 | 



^ Mean temperature of April for the last twenty-eight years . 47 '16 | j i ^ 

 -- Average amount of rain in April 1*64 inchl i, ^ 



JBos/oM.— April 1—7. Fine. 8. Cloudy. 9—14. Fine. 15. Cloudy. 16—20. H g^ 

 Fine. 21. Rain a.m. 22. Rain a.m. and p.m. 23— 26. Cloudy. 27. Rain aj^. o^ 

 and P.M., with thunder and lightning. 28. Rain a.m. 29. Cloudy : rain a.m. W.^ 

 30. Cloudy : rain p.m. ' ^T ^ 



Sandwich Manse, Orkney. — April 1. Rain a.m. : rain, clear p.m. 2. Clear a.m. : 

 showers p.m. 3. Showers a.m. : rain p.m. 4. Bright a.m. : cloudy p.m. 5. 

 Showers a.m. : cloudy p.m. 6. Drizzle a.m. : clear p.m. 7. Bright a.m. : cloudy 

 P.M. 8. Bright a.m. : showers p.m. 9. Bright a.m. : cloudy p.m. 10. Bright a.m. : 

 showers P.M. 11. Bright a.m. : clear, aurora p.m. 12. Clear a.m. and p.m. 13. 

 Fine a.m. : clear p.m. 14. Fine, clear a.m. : clear, aurora p.m. 15. Fog a.m. : 

 damp P.M. 16. Cloudy a.m. : clear p.m. 17. Clear, fine a.m. and p.m. 18, 

 19. Clear a.m. : clear, aurora p.m. 20. Clear, fine a.m. : clear, fine, aurora p.m. 

 21. Clear, fine a.m.: cloudy p.m. 22. Cloudy a.m. and p.m. 23. Snow-showers 

 a.m. : cloudy p.m. 24. Cloudy a.m. : cloudy, solar halo p.m. 25. Bright a.m. : 

 clear p.m. 26. Damp a.m. : rain p.m. 27. Showers a.m. and p.m. 28. Snow- 

 showers a.m. and p.m. 29. Clear a.m. : rain p.m. 30. Showers a.m. : showers, 

 clear p.m. 



Mean temperature of April for twenty-seven previous years . 43*'-43 



Meaa temperature of April 1853 44*49 



Mean temperature of this month 44*68 



Average quantity of rain in April for thirteen previous years I 86 inch. 



