EEV. E. F. WHEELEE, M.A., AND DE. HOOPPELL. 59 



The following has been kindly furnished by Mr. G. C. Atkinson. 



Percentage of Wind, from Different Quarters, at Wylam, in 1872. 



QUAETEES. 



Percentage. 



QUAETEES. 



Percentage. 



North 



5 



16 

 5 



7 



South 



7 

 15 

 35 

 10 



North-East 



South-West 



East 



West 



South-East 



North-West 







Mean Direction of the Wind, at Wylam, in the several Months of 1872. 



MONTHS. 



Mean 

 Direction. 



MONTHS. 



Mean 

 Direction. 



January 



W. 25° S. 

 S. 23° W. 

 W. 2° S. 

 W. 38° N. 

 W. 27° N. 

 W. 13° S. 



Julv 



W. 4° S. 

 N. 10° W. 

 W. 9° N. 

 W. 23° N. 

 W. 5° N. 

 W. 24° S. 



February 



September 



March 



April 





Mav 





December 







Mean for Whole Year W. 1° N. 



Mr. T. "W. Backhouse, of "West Hendon House, Sunderland, 

 has sent the following table. By "Yearly Eatio" is meant the 

 amount of Rain that would have fallen, had the wind continued 

 to blow from the same quarter throughout the year, and the 

 same proportion of rain continued to fall with it. The table 

 consequently shows the comparative precipitation accompanying 

 the wind, as it blows from the several quarters. 



Duration, in hours, of Wind, from each Quarter, at Sunderland, in 1872, 

 with the amount of Rain which fell with each, and the Yearly Ratio 

 of the same. 



QUAETEES 



North 



North-East 



East 



South-East 



South 



South-West 



West 



North-West 



Uncertain 



Hours. 



540 



467 



551 



939 



1095 



1398 



1611 



616 



1567 



Eain. 



3-42 

 3-50 

 5-07 

 5-76 

 1-59 

 2'71 

 1-94 

 4-94 



7-93 



Yearly 

 Eatio. 



55-63 

 65*83 

 80-83 

 53-88 

 12-75 

 17-03 

 10-58 

 70-44 



44-45 



