New Terrestrial Globe — Barometric Observations. 467 



NEW TERRESTRIAL GLOBE. 



M. Charles P. Khummer, of Berlin, has recently published a 

 Globe, on which the Mountains are boldly executed in relief. 

 The idea is good, and we hope will be adopted in London, as 

 being admirably calculated for geographical instruction. 



BAROMETRIC OBSERVATIONS. 



To Mr. Tilloch. 



Midhiirst, Sussex, Dec. 11, 1820. 

 Sir, — I take the liberty of sending you the subjoined obser- 

 vations, in compliance with an invitation published in alate Num- 

 ber of the Philosophical Magazine, by Mr. Bevan, to persons in 

 different parts of the country, to make simultaneous observa- 

 tions for determining the relative elevations of their staiioiis. 



The height of the basin of the barometer may be estimated 

 at ten feet above the level of the neighbouring river. 

 I am your obedient servant, 



B. Powell. 



I was prevented from making observations according to 

 Mr. B.'s wish, from 8 to 12 A.M., but these may not be wholly 



useless. ^^^ 



■ Epping, Dec. 13, 1820. 



Sir, — The following barometrical observations were made at 

 Epping, latitude 51° 41' 41" 6, longitude 0^ 6' 45" east of 

 Greenwich. 



