Extent of Clouded Sky. 



TABLE XXXIX. — Mean Extent of Clouded Sky, with reference to the Moon's Age and 



Declination, in 1844. 



Table XXXIX. has been formed from Table XXXVIII. in the manner described for Table II. of the 

 magnetical results. 



Siy clouded with reference to the Moon's Age. — The means of groups are as follow : — 



12 days till 18 days, Full Moon, 6-94 



15 22 ... 7-48 



19 26 ... 7-23 



23 29 ... 6-94 



27 days till 3 days, New Moon, 7-24 



7 ... 7-30 



4 11 ... 6-94 



8 14 ... 6-54 



These quantities indicate, that the sky was most clouded a few days after full moon and after new moon, 

 and least clouded a few days before fiiU moon, and less clouded a few days before new moon than after it. 



Sk<f clouded with reference to the Moon's Declination. — The means of groups are — 



25 days till 3 days. Moon farthest North, 7-57 



6 ... 7-28 



4 10 ... 6-76 



7 13 ... 6-87 



11 days till 17 days, Moon farthest South, 7-25 



14 20 ... 7-32 



18 24 ... 6-83 



21 27 ... 6-94 



From these means, the sky was most clouded when the moon was farthest north and south, and least 

 clouded at the intermediate periods. This result only agrees with that for 1843, in having a maximum when 

 the moon was farthest south. In order to obtain any connection between the age or position of the moon and 

 extent of clouded sky, it will probably be desirable to consider only those observations made between e*" p.m. 

 and 6* a.m. 



