nted by boiling for 11/2
hours in a bath containing 3 kil. chromate of potash and 21/2 kil. tartar,
and lightly rinsed; when it can immediately be dyed. For 1,000 lit.
water, 1 lit. acetic acid of about 7 deg. Be. is added to the bath. If the
water is very hard, double the quantity of acetic acid, which is
indispensable, is added. Then the required quantity of dyestuff is added,
well stirred, the wool entered, and the temperature raised to boiling,
which is continued for 21/2 to 3 hours, that is, until a sample taken does
no longer surrender any color to a hot solution of soap. Loose wool and
worsted slubbing can be entered at 60 deg. C. (140 deg. F.). In dyeing yarn and
piece-goods, however, it is advisable to enter the bath cold, work for
about 1/4 hour in the cold, and then slowly to raise the temperature in
about one hour to the boiling point. With this precaution, level and
thoroughly dyed goods are always obtained. If the wool is entered in a
hot bath, or if it is rapidly brought to a boil, the dyestuff is too
rapidly fixed by the mordant and is liable to run up unevenly, and, with
piece-goods, more superficially. For the same reason the goods must
always be well wetted out before entering the bath.

We add some special recipes for the various colors, the mordant for all
of them being of 3 per cent. chromate of potash and 21/2 per cent. tartar
for 100 by weight of dry wool.

1. _Orange, Brown Touch_.
20 kil. wool, mordant with 600 grm. chromate of potash and 500 grm.
tartar, dye with 3 kil. alizarine orange W.

2. _Ponceau, Yellow Touch_.

20 kil. wool, mordant as for No. 1, dye with 2 kil. alizarine red WR 20
per cent.

3. _Ponceau, Blue Touch_.

20 kil. wool, mordant like No. 1, dye with 2 kil. alizarine red WB 20 per
cent.

4. _Dahlia_.

20 kil. wool, mordant like No. 1, dye with 5 kil. galleine W.

5. _Green_.

20 kil. wool, mordant like No. 1, dye with 6 kil. coeruleine W.

_For Piece-goods._

20 kil cloth, mordant the same, dye with 1 kil. 200 grm. coeruleine SW.

6. _Blue, Bright_.

20 kil. wool, mordant the same, dye with 6 kil. alizarine blue WX.

_For Piece-goods._

20 kil. cloth, mordant the same, dye with 1 kil. 200 grm. alizarine blue
SW.

7. _Blue, Dark and Red Touch_.

20 kil. wool, mordant like No. 1, dye with 6 kil. alizarine blue WR.

_For Piece-goods._

20 kil. cloth, mordant the same, dye with 1 kil. 200 grm. alizarine blue
SRW.

Particular stress is to be laid upo