MERCURY.

(Metallic.)

1 gr. of mercury is contained in 3 gr. of hydrargyrum cum cretâ.

1 gr. of mercury is contained in 3 gr. of pilula hydrargyri.

1 gr. of mercury is contained in 2 gr. of unguentum hydrargyri.

(Hydrargyri Perchloridum.)

¹⁄₁₆ gr. of perchloride of mercury is contained in 1 fl. drm. of liquor hydrargyri perchloridi.

(Hydrargyri Subchloridum, or Calomel.)

1 gr. of subchloride of mercury (calomel) is contained in 5 gr. of pilula hydrargyri subchloridi composita.

1 gr. of subchloride of mercury (Calomel) is contained in about 6¹⁄₂ gr. of unguentum hydrargyri subchloridi.