V.-VI. 



COMPARISON 



OF 



THE OLD FRENCH BAROMETER 



THE ENGLISH AND THE METRICAL BAROMETERS, 



OR 



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. 



33 



