ame. This passes
into the furnace through the two holes, C, C, and plays under and up
around the muffle D, standing on a fireclay slab. The doorway is closed
by two fireclay blocks at E. A temperature of over 2000 deg. F. can be
obtained in furnaces of this class, and the heat is of course under
perfect control.

[Illustration: FIG. 2.--Reverbatory Furnace.]

A reverberatory type of gas furnace, shown in fig. 2, differs from the
oil furnace in having the flames brought down through the roof, by pipes
A, A, A, playing on work laid on the fireclay slab B, thence passing
under this and out through the elbow-pipe C. The hinged doors, D, give a
full opening to the interior of the furnace. It will be noticed in both
these furnaces (by Messrs Fletcher, Russell & Co., Ltd.) that the iron
casing is a mere shell, enclosing very thick firebrick linings, to
retain the heat effectively. (J. G. H.)

ANNECY, the chief town of the department of Haute Savoie in France. Pop.
(1906) 10,763. It is situated at a height of 1470 ft., at the northern
end of the lake of Annecy, and is 25 m. by rail N.E. of Aix les Bains.
The surrounding country presents many scenes of beauty. The town itself
is a pleasant residence, and contains a 16th century cathedral church,
an 18th century bishop's palace, a 14th-16th century castle (formerly
the residence of the counts of the Genevois), and the reconstructed
convent of the Visitation, wherein now reposes the body of St Francois
de Sales (born at the castle of Sales, close by, in 1567; died at Lyons
in 1622), who held the see from 1602 to 1622. There is also a public
library, with 20,000 volumes, and various scientific collections, and a
public garden, with a statue of the chemist Berthollet (1748-1822), who
was born not far off. The bishop's see of Geneva was transferred hither
in 1535, after the Reformation, but suppressed in 1801, though revived
in 1822. There are factories of linen and cotton goods, and of felt
hats, paper mills, and a celebrated bell foundry at Annecy le Vieux.
This last-named place existed in Roman times. Annecy itself was in the
10th century the capital of the counts of the Genevois, from whom it
passed in 1401 to the counts of Savoy, and became French in 1860 on the
annexation of Savoy.

The LAKE OF ANNECY is about 9 m. in length by 2 m. in breadth, its
surface being 1465 ft. above the level of the sea. It discharges its
waters, by means of the Thioux canal, into the Fier,