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" Note on the Relative Velocities of different Winds, at 

 Southport, and Eccles, near Manchester," by Joseph Baxen- 

 DELL, F.RA.S. 



In November last Mr. Mackereth, F.R.A.S., had an ane- 

 mometer mounted at his observatory, Eccles, by Mr. Dancer, 

 precisely similar in construction to that mounted at the 

 Southport Meteorological Observatory. Regular observa- 

 tions were commenced with it on the 19th of that month, 

 and as Mr. Mackereth has kindly furnished me with copies 

 of his results to the 17th of February instant, I have thought 

 it might be interesting to compare them with the results of 

 the observations taken at the Southport Observatory. 



During the 90 days from November 19, 1871, to Feb- 

 ruary 17, 1872, the total movement of the wind was 13696*4 

 miles at Eccles, and 29848-0 miles at Southport. The ratio 

 of the mean velocities was therefore as 1 to 2-17, or for 

 every 100 miles at Eccles there was a movement of 217 

 miles at Southport. Grouping the daily movements at 

 both stations according to the mean daily direction of the 

 wind at Eccles, as shown by Mr. Mackereth's automatic 

 anemometer and referred to 16 points of the compass, we 

 obtain the following results : — 



