Lake Maxinknckee, Physical ami Biological Survey 



59 



these, 393 were clear, 530 cloudy, 151 clearing, 104 clouding up and 

 49 about evenly balanced between cloudy and clear. 



In a discussion elsewhere of the conditions of the sky for vari- 

 ous months, the conditions were given for periods of observation, 

 so that the observations along that line could fit in well with the 

 temperature records taken three times daily. In the present con- 

 sideration they are given by days. 



Taking the year extending from July 1, 1900, to June 30, 1901, 

 the year for which the i-ecord is most complete, there are repre- 

 sented in the record 361 days (4 days in December having no 

 record). Of these 361 days 79 were clear, 168 cloudy, 53 clearing, 

 46 clouding, and 15 partly cloudy and partly clear. Taking this 

 year by months, the days were distributed as shown by the fol- 

 lowing table : 



CONDITION OF SKY FOR 1 YEAR FROM JULY 1, 1900, TO JUNE 30. 1901 



Although the records of no other year are full enough to make 

 the giving of the full year satisfactory, the records of a number 

 of months are almost complete, and those of a few months fully 

 complete. A table for such months as have complete records is 

 given below for the sake of comparison : 



