168 



MAINE STATE COLLEGE. 



isyo. 



Wind. 



April, 



May, 



June, 



July, 



August. 



September, 



October, 



Mean, 



Mean distance 



travelled per day. 



Miles. 



241.73 



235.14 



230.40 



166.2S 



1S7.03 



155.59 



1S9. 01 



200.74 



Velocity 



per boar. 



Miles. 



10.07 

 9.79 

 9.60 

 6.95 



7.65 

 6.45 

 7.85 



S.34 



1891. 



Wind. 



April, 



May, 



June, 



July, 



August, 



September, 



October, 



Mean distance 

 travelled per day. 



Miles. 



Velocity 



per hour. 

 Miles. 



210.55 



S.77 



206.25 



8.59 



1S2.71 



7.61 



1S5.44 



7.73 



1G9.5S 



7.07 



162.07 



6.75 



101.92 



8.00 



Rain. 



Amount. 



Inches. 

 1.98 



10.13 

 3.78 

 3.S4 

 5.39 

 4.21 

 3.19 



Total, 32.52 



Rain. 

 Amount. 



Inches. 

 3.13 

 2.76 

 3.13 

 3.36 

 4.3S 

 3.50 

 2.S1 



Mean, 1S6.93 7.79 23.07 



For the full year 1890, the mean daily velocity of wind was 

 211.16 miles, and the mean hourly velocity, 8.90 miles; and for 

 the full 3 r ear ISO 1, the corresponding velocities were respectively 

 214.82 miles and 8.95 miles. The rain-fall in May, 1890, 

 amounting to 10.13 inches, was larger than in any other month in 

 twenty-three years. 



Conclusion. 



A summarized report, like that which has been presented, while 

 in proper form for inferring laws and deducing general principles, 

 conveys but little idea of the nature and daily requirements of 

 the meteorological work in progress. 



In order that these points may be more definitely apprehended, 

 I append the records for one month of 1891, selecting the month 

 of September. 



An examination of the original records discloses much of 

 interest that cannot appear in a condensed summary. 



It is by the careful study of observations and records covering 

 a considerable period of time, that general laws pertaining to this 

 subject are discovered, and truths are revealed which are of 

 importance to mankind. 



