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XXVIL Hi7its regarding the Coincidence which 

 takes place in the Pressure of the Atmosphere, 

 at different Latitudes, and at nearly the same 

 Time. 



Pjr the Right Hon. Lord Gray, F. R. S. Lond, h Edin. &c 



CJlead QSd November 1816 J 



The annexed plate ^ contains the observations of 

 the barometer for two years, 1814 and 1815, at 

 four and three different places in Great Britain, 

 from latitude 57° 38' to 50' 26'. They are re- 

 duced into curves, the more readily to shew the 

 great harmony which subsists in atmospherical 

 pressure. I was first induced to think much on 



* Plate XX. 



