L82 



BEN NEVIS OBSERVATORY.— LOG-BOOK. 



[1899. 



AprQ 4. — Heavy rain all morning. Very heavy 

 showers of hail in afternoon. The amount (melted) for 

 hoar ending I5 h was 0*820 inch. The total fall for the 

 day was 3'97 1 inch 



April 5.— Very heavy falls of snow and hail. St 

 Elmo's Fire seen at 3 h . 



April 7.— Snow-bunting seen at 16 h . 



il 8. — Thermometer box changed at 4 1 ' 10 m . 



it not altered. 



7 9. — Except for passing fog at times the summit 



was clear from 4 1 ' till Hi 1 ', but fog lay in detached sheets 



and masses on lower hills. Thermometer box changed 



after 7\ Height not altered. Solar halo seen at 9 1 '. 



April 12.— Solar halo seen at 14 h . 



April 1G. — Lunar coronas seen at 22 h and 23 h . Ther- 

 mometer box changed after 10 h . Snow-bunting seen at 

 10 1 '. 



April 17. — Fog most of the morning: clear in after- 

 noon but sky cloudy with cumulus. This cumulus was 

 quite near overhead and moving from N.W., though the 

 wind on summit was E.N.E. and N.E. Lunar fog-bow 

 seen at l 1 ', and a lunar corona at midnight. 



April 18. — Solar halo seen at 7 h and ll h . Ben 

 shadow seen at 5 1 ', after sun got up. 



April 19.— Fog till 14 u , clear thereafter, but some cir. 

 on sky, on which a solar halo was seen at 17 h and 18 h , 

 and lunar halos at 21' 1 , 22 h , 23 h , and midnight. Lunar 

 corona at midnight. At midnight there was a distinct 

 dark ring inside the halo, and the corona was seen on 

 cirro-cumulus about the moon. 



April 20. — Cloudy with cir. till noon, and with cum. 

 till 19 h . Cloudless thereafter. Lunar corona and part of 

 halo on cir.-c. at l h . Snow-bunting heard singing at 10 h , 

 and five ravens seen flying about cliff at 17 h . 



April 21. — Solar corona seen at 18 h , and lunar coronas 

 at 22 h and 23 h . 



April 22. — Solar halo at noon. At 2 h a filmy streak 

 of faint grey light stretched across sky from N.W. to S.E., 

 and about 15° W. of Zenith, perhaps cirrus. A peculiar 

 how was seen on some stratus (loose) to S. W. and W. 

 at sunrise. Its ratlins per stephanome was 43° - 37'. It 

 was observed from 5 1 ' 5"' till 5 U 15™. Snow-bunting seen 

 at 5 h , and a raven at noon. 



April 26. — Air dry, but thick haze below. Ther- 

 mometer box changed at 5 1 ' 10 m . Height not altered. 



April 28. — Snow-bunting seen at 13 h . 



May 2. — Aurora at 2 b — "faint and low to northward, 

 with long faint streamers." 



May 4. — Aurora, which began as a bright single arch 

 without streamers at 23 h last night. The arch, badly 

 delineil at midnight, but with some short streamers. At 

 l' 1 it was faint and low, and with only a few faint 

 uiiers. Solar eoron i seen at ll 1 '. Buntings seen at 

 17 h . 



May 5. — Fog on Lower hills all morning, and on 

 summit for several hours. Clear and almost cloudless all 

 ning. Thick haze came on at night. Aurora at, mid- 

 night, as badly defined blotches low to N. and N.W. 



May 0. Sk\ cloudless, except, for some cumulus in 

 ning. Very thick haze all round below, and some fog 

 below in morning only. Aurora at l h low and faint. 



May 7. — Thick haze all day, and some fog below in 

 early morning a little cumulus about mid-day in sky. 



51 inches, 

 summit at 



after 22 h . 



May 8. — Two bright meteors seen in S.S.W. sky at 

 l h 20"' and l 1 ' 24™. Haze in evening formed a belt above 

 the S.E. hills, as if a layer of different air was pushing it 

 up. Cuckoo heard from Buchan's "Well to-day. 



May 9. — The day began cloudless ; but in forenoon 

 cirrus types and cum.-s. gradually overspread sky. In 

 the evening there were cir., cir.-s., cir.-c, and cum.-s., 

 which at night formed into a dense nimbus from which 

 some rain fell. Solar halo seen at 15 h . Warm dry puffs 

 of air were felt at 3 h . A number of dead flies were seen 

 on the hard frozen snow surface between Observatory and 

 M'Lean's Steep after 4 h . The cat caught a mouse (vole 

 probably) in kitchen. Apparently there are several as 

 they have been heard all spring. 



May 11. — Haze and fog below — chiefly to eastward 

 and northward. The cat caught another vole to-day. 



May 12.— Solar halos seen from 6 1 ' till 15 h . At 3 h the 

 thermometer box was lowered one step. Height above 

 snow at 15 h 41 inches. A snow-burting was seen at 1 l h . 



May 15. — Fog on hills all round, and passing over 

 summit occasionally. Fox tracks seen in snow at 3 h . 



May 19. — Thermometer box changed and raised one 

 step at 13 h . Height above snow at 15 h 

 Glazed frost at 22 1 '. Raven seen flying about 

 13 h . 



May 20. — Thermometer box changed 

 Height not altered. 



May 23. — Snow-buntings seen at 8 h . 



May 24. — Two snow-buntings at door-way at 13 h . 



May 27. — Cloudless all day, except for a little cumulus 

 between 9 h and 16 h . Air dry and very clear. Cuckoo 

 heard faintly at 4 h . 



May 28. — Fog below in morning ; rising in forenoon. 

 Cloudy in afternoon, but clouds falling and vanishing in 

 evening. 



May 29. — Sky partly covered with different kinds of 

 cirrus — on which halos were seen at 5 h . 6 h , 8 h , and 19 h 

 thickening and lowering at night. Thick haze all round 

 all day. 



May 31.— Solar halos seen at 9 h and 15 h . Thick 

 haze around all day. 



June 1. — Very hazy to-day, not only below, but at and 

 above the level of summit — the sky being rather hazy 

 also. 



June 2. — In early morning the clouds gradually 

 thickened and assumed heavy, threatening, thundery 

 appearances. No thunder beard, but frequent and strong 

 earth currents moving tongue of telephone bell between 3 b 

 and 6 h . Rain began at 5 h , and mist came on at 9 h . 



June 6. — Fog in valleys and on hills below most of 

 the day, and at times passing over summit in forenoon. 

 A very fine glory seen at 21 h round the shadow of 

 Observatory and Cairn to northward. 



June 7. — Fog on summit from 8 h to 16 h . Clear again, 

 and sky cloudless after 21 h . Fog in valleys all round 

 before 8 h and again in the evening. Thermometer box 

 lowered one step at h 5 m . Height above snow 43 inches. 



June 9. — Sky cloudless. Some fog in valleys in early 

 morning, but after 8 1 ' no fog below. Slight haze in 

 distance during the day, becoming thicker towards evening. 



June 10. — Haze all round to about 10° above horizon. 

 Great banks of fog to W, in evening. A faint solar halo 

 seen at 9 1 ', 



