285 



XX. 



METRICAL BAROMETER. 



TABLE 



FOR 



REDUCING TO THE FREEZING POINT THE BAROMETRICAL 



COLUMN, 



MEASURED BY BRASS SCALES, EXTENDING FROM THE CISTERN TO THE TOP; CAL- 

 CULATED FOR THE HEIGHTS BETWEEN 605 AND 800 MILLIMETRES, AND FOB 

 EVERY TENTH OF A DEGREE, FROM TO -f~ AND 35 CENTIGRADE. 



BY M, T. HAEGHENS. 



79 



