FIFTH ANNUAL MEETING. 



49 



64,828 miles as the entire distance traveled by the wind. . This gives 

 an average hourly velocity of nearly fifteen (14.68) miles. The 

 greatest velocity recorded was sixty-five miles an hour from 9 a. m. 

 to 3 p. M. on November 14th. For the sake of comparison it may 

 be mentioned that the mean hourly velocity of the wind at Philadel- 

 phia is eleven miles; at Toronto, nine miles ; at Phmouth, England, 

 nine miles ; at Liverpool, thirteen miles. 



FACE OF THE, SKY. 



The following table gives the average cloudiness in hundredths 

 for each month and year during the period of observation : 



It thus appears that on the average a little more than forty-six 

 hundredths of the sky was covered with clouds during the five years 

 of observation. This corroborates the assertion so often made that 

 in Kansas there is a greater proportion of sunny weather than in the 

 Eastern States. In the New England States the average cloudiness 

 is fifty-three hundredths of the sky ; in the Southern States forty- 

 seven hundredths; and at Sacramento, California, only thirty-one 

 hundredths; while throughout Great Britain the average reaches 

 seventy hundredths. During our period of observation at Lawrence, 

 the average number of clear days in a year was 157, counting as clear 

 those days on which not more than one-third of the sky was covered 

 with clouds ; the average number of half clear days was 89, includ- 

 ing under this designation those days on which between one-third 

 and two-thirds of the sky was covered, and the average number of 

 cloudy days was 120, when two-thirds or more were covered. The 

 average number of entirely clear days was 35, and the number of 

 entirely cloudy days was 36. 



HUMIDITY OF THE AIR. 



The amount of moisture contained in the atmosphere is another 

 important element in climatology. Much has been said in reference 

 to the dryness of the air in Kansas, and on account of this property 

 many invalids have received permanent benefit from a residence in 



