. Elements of the art of assaying metals. , andwhereon the Vejfels are put. B. The fecond Chamber, or fire-Place. e. The great Door. f. f. The fmaller Doors. C. The third Chamber. g. A Hole, through which the Flame pajes from thefecond into the third Chamber. h. h. h. Doors. i. i. The Hearth or Floor, D. The fourth Chamber. k. k. A quadrangular Hole for the Pajfage of theFire. J. The Door. , m. The Funnel. n. n. n, n. &c. prickt Lines, fkewing the Form of theinward Cavity of the Furnace. o. o. o. o. o. o. o. S^nall Holes viade through everyDoor. Fig. II. The Furnace reprefented at the hinder-p
. Elements of the art of assaying metals. , andwhereon the Vejfels are put. B. The fecond Chamber, or fire-Place. e. The great Door. f. f. The fmaller Doors. C. The third Chamber. g. A Hole, through which the Flame pajes from thefecond into the third Chamber. h. h. h. Doors. i. i. The Hearth or Floor, D. The fourth Chamber. k. k. A quadrangular Hole for the Pajfage of theFire. J. The Door. , m. The Funnel. n. n. n, n. &c. prickt Lines, fkewing the Form of theinward Cavity of the Furnace. o. o. o. o. o. o. o. S^nall Holes viade through everyDoor. Fig. II. The Furnace reprefented at the hinder-part. Fig. III. The Figure of the Furnace cut perpen-dicularly in the Middle : Toge(her with a Reprefentation H h 3 (f 470 Explanation of the Figures. of the Vejffeh within. The Letters ccrrefpond with thofeof Fig. I. Fig. IV. A cylindrical Veffel fhut clofe at Top. a. A Hole through which the Matter may he putinto it, and examined when therein. Fig. V. A common triangular Crucible, adapted tathe fame Ufe as the foregoing Fig. IV. :^\. INDEX, PI. I.
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