adv. [f. prec. + -LY2.] By means of a barometric observation.

1

1777.  Shuckburgh, in Phil. Trans., LXVII. 554. This gives for the height barometrically, 2748·9 ft.

2

1817.  Edin. Rev., XXVIII. 180. Heights barometrically ascertained.

3