1892. } NEW YORK ACADEMY OF SCIENCES. 169 
Mordant; wash, and a in si agates bath 
Weld : 
: . 6.0 gms, 
Chalk  . : : 3 ; » .035gm. 
No. 2 (10250). 
Al,(SO,), : 0.4 gm. 
Mordant ; wash, and one in separate bath with 
Weld : ; é ; . 4.5 gms. 
1 hour at 80°-90° C. 
No. 3. 
San es! oo : : ; . 0.8 gm. 
Mordant; wash, and dye in separate bath 
Weld : A : : A . 4.5 gms. 
No. 4 (10249). 
Same, with 
CuSO, . : . : : - > MG gan: 
Chalk. ; : : : eden eda 
No. 5. 
Same, with 
HesO, . : : : , . 0.4 gm. 
Tartar. : : : - 7b eae 
Old Gold. 
mCeO. 0.2 gm. 
Mordant and “dye in separate bath with 0.6 gm. ‘Weld; add 
3.0 gms. Chalk to dye-bath. 
Yellow.—Mordant 1-2 hours with 0.4 gm. Al,(SO,),; wash, and 
dye in separate bath with decoction of 5.0-10.00 gms. Weld for 
20-60 minutes at 80°-90° C. 
Prepare bath just before dyeing; chop the Weld, put in bags, 
and boil in soft water 3-1 hour; add 0.4 gm. Chalk before dyeing. 
Brighter yellows are ‘obtained by mordanting with 0.8 gm. SnCl,. 
Also, single bath similar to cochineal scarlet gives bright yellows. 
Yellowish-olive.-—Mordant with 0.6 gm. CuSO,; add 0.2-0.8 gm. 
CaCO, or 0.4 gm. FeSO, and 0.3 gm. Tartar, with Chalk. 
Fustic. 
Use water-bath. 
No. 1 (10169, 10170). 
Ke Cr.0y . 0.4 gm 
Boil 1-14 hours ; dye in separate bath at 100° C., 20-80 per cent. 
Wood. 
This will yield a brownish or olive-yellow. 
Vou. XI.—12 
