V.-VI. 



COMPARISON 



OF 



THE OLD PRENCH BAROMETER 



WITH 



THE ENGLISH AND THE METRICAL BAROMETERS, 



OB 



TABLES 



FOR CONVERTING FRENCH OR PARIS LINES INTO ENGLISH INCHES 

 AND DECIMALS, AND INTO MILLIMETRES ; 



GIVING THE VALUES CORRESPONDING TO EVERY PARIS LINE FROM 120 TO 216 



LINES, OR FROM 10 TO 18 INCHES ; AND TO EVERY TENTH OF A LINE 



FROM 216 TO 348 LINES, OR FROM 18 TO 29 FRENCH INCHES. 



C 33 



