92 



BEN NEVIS OBSERVATORY. — LOG-BOOK. 



[1898. 



—The wind was very squally all day, at times 



ale. As the observer's lamp was blown out 



temperature was taken from the Tower 



Dec. 27.- 

 blowing a j 

 at 5 h the 

 Screen. 



Dec. 28. — Earth currents (strong) ringing bell between 

 16'' and 17 1 '. Thermometer box changed at 8' 1 45 m . 

 Height of box not altered. Cold band very strong at 

 15". 



Dec. 29. — Lunar coronae seen at l h and 3 1 ', and halos 

 at 6 1 ' and 7". Clouds like " pearly cirrus " seen in E rn . 

 sky at 7\ Thermometer box changed at 4 1 ' 20 m at same 

 height as before. 



Dec. 30. — Summit clear and sky cloudless most of the 

 day, but thin cir.-s. gradually overspread the sky after 20 h , 

 and fog came on at midnight. Lunar halos seen at 22 h 

 and 23 h , and a lunar corona was noted at l h . At 22 1 ' 

 thick haze was seen in distance to S.E., S., and S.W. At 

 23'' this haze was all round and very dense. Thermo- 

 meter box changed at 10 h 20 m . Height not altered. 



Dec. 31. — Fog all day forming dark fog crystals on all 

 windward surfaces. S.E. gale, at times exceeding force 

 11, blew till 14 h . 



From 6 h till 10 1 ' inclusively the Tower thermometer was 

 used Avith a correction of +0 5. 



