24

15

20 Fect.

Scale.

Inside Length of Furnace.12 Feet.

Resting

Resting

2

Resting

3

Foot Hole

Foot Hole

1 ft 4 in.

I ft 4 in.
Scale.

Foot Hole
Ift 4 in.

10

15

ENCYCLOPEDIA BRITANNICA, NINTH EDITION.

20 Feet.

Engby G.Aikman. Edin!