1915.] SUNSHINE OF GUERNSEY. 253 



which compared with June's 30 days' total of 242 hours, 

 places May in a lower position than June, which is as it should 

 be. In the case of July we have a mean of nearly 9 hours 

 per day, and if we subtract 9 hours from 264, we have 255 

 hours. Here June compares badly, for the latter part of June 

 contains the longest days, and the apex of the sunshine curve 

 should be found in the last week of June ; but as the July 

 sunshine is higher than that of June, even when corrected by 

 the loss of a day, we have proof that June is for some cause, 

 not yet ascertained, more cloudy than its position in the sun- 

 shine year warrants, as the year is arbitrarily divided into 

 months of unequal duration. The same fault, due to our 

 calendar, is shewn in the case of February. When the days 

 of January, February and March are divided into three equal 

 number of days, the apparent want of sunshine in February is 

 accounted for. This year has given the least sunny June on 

 record, having yielded 1 7 1 hours only instead of 242 hours, 

 thus it is 71 hours below its average. The accumulated 

 sunshine from January 1st fell below the average in April, 

 and the curve remained below to the end of the year. In this 

 comparison it may be stated that 70 per cent, of the departure 

 from the average annual total was due to the deficit in June 

 and the other 30 per cent, to that in other months. There are 

 many other interesting features which can be ascertained by 

 a study of Table I. 



