l6o Observations of Tcmpcratitre. 



Comparison of Observations of Temperature taken 

 at two stations in Manchester from December 4th, 

 1892, to January 28th, 1893. By J. Wilson. Com- 

 municated by Arthur Schuster, Ph.D., F.R.S., 

 F.R.A.S. 



{Received March jth, i8gj.) 



Since August, 1892, systematic meteorological observa- 

 tions have been taken at the Observatory in Whitworth 

 Park, Manchester. These have been compared with similar 

 readings taken at the Oldham Road (the "Manchester City") 

 Observatory, and it has been thought that a short summary 

 of the results of such a comparison would not be without 

 interest to members of this Society. 



The period chosen for a detailed comparison extends 

 from December 4th, 1892, to January 28th 1893 ; this 

 being selected as it contains the periods of lowest tempera- 

 ture of the winter 1892-3. 



The Oldham Road Observatory is situated in an industrial 

 area on the north side of the town, Whitworth Park being 

 in a residential area on the south side. Both stations are 

 about one mile distant from the centre of the city. 



All the observations are taken at 9 a.m. The ther- 

 mometers at both observatories have been verified at Kew, 

 and they are exposed in Stevenson's screens, 4 ft. high, over 

 grass. 



The observations which have been tabulated are the 

 following : — 



I. — Maxima in the shade. 

 II. — Minima „ „ 



III.— Means of I. and II. 

 IV. — Temp, at 9 a m. in the shade. 



