A MANUAL 



OP 



THE BAROMETER; 



CONTAINING AN EXPLANATION OF THE 



CONSTRUCTION AND METHOD OF USING THE MERCURIAL 



BAROMETER, WITH APPROPRIATE TABLES FOR 



CORRECTIONS FOR TEMPERATURE, AND RULES FOR 



OBTAINING THE DEW-POINT AND THE 



HEIGHTS OF MOUNTAINS : 



TO WHICH ARE ADDED, 



AN ORIGINAL TABLE OF THE MEAN HEIGHT OF THE BAROMETER 



FOR EVERY DAY OF THE YEAR, AND PHENOMENA OF THE 



WINDS AND CLOUDS IN THEIR CONNEXION WITH 



THE CHANGES OF THE WEATHER: 



ALSO, 



A DESCRIPTION OF THE ANEROID BAROMETER. 



BY JOHN HENRY BELVILLE, 



OF THE ROYAL OBSERVATORY, GREENWICH. 



LONDON: 

 RICHARD AND JOHN EDWARD TAYLOR, 



RED LION COURT, FLEET STREET. 

 1849. 



