1892. ] NEW YORK ACADEMY OF SCIENCES. 165 
No. 10052. Same, using 0.1 dye, 0.1 Tartar, 0.2 ce. Spirits. 
No. 2 (10061, 10062). 
FeSO, : : : : : - OS lem, 
Tartar : Oars 
Boil ? hour; take out, wash, and dye i in separate bath for 1 hour 
Cochineal : : ‘ : : sds?) ome: 
Cochineal crimson. 
ALGO x ' : : : . 0.4 gm. 
Tartar : : a Oia 4 3° 
Mordant; wash and dye is 13 hours: 
Cochineal . é : : : Ea Se Sate 
Scarlet.—No. 1. 
Mordant 1-14 hours with 0.6 gm. SnCl,, 0.4 gm. Tartar; wash, 
and dye in 0.5 gm. Cochineal 1-1} hours; enter wool in mordant- 
ing and dye-baths at 50° C. and raise gradually to boiling. 
No. 
Baih 4 full of water. 
H,C,0, : : : ; : . 06° om. 
SnCi, : : : : ; ye SEONG! tt 
Cochineal. . , ‘ ; : QoL ie 
Boil 5-10 minutes; fill bath with cold H,0O; introduce wool; 
heat to boiling 2-1 hour; boil 4 hour. 
Use SnCl, in solution. A moderate amount of HCl is advan- 
tageous. 
Cochineal Spirits.—No. 10050. 
Cochineal (10014). , : . 1.000 gm. 
Tin Spirits (10040). ; ' <7 OOO: oS 
Water, dist. : 5 . —L.5 liters: 
Mix the Cochineal (ground) with water to a thin paste; add Tin 
Spirits, dilute with water, heat to boiling, and continue 15 minutes; 
then cool to 180° F., enter wool, raise to boiling, and continue for 
1 hour, or until the bath is exhausted; allow to cool in the bath, 
then take out and wash in warm water. 
No. 10059, 10060. 
~ Cochineal with K,Cr,O, 0.2 gm. and 0.3 gm. H,SO, cone. gives 
purple. 
Cochineal crimson.—No. 1 See 
ALGSO)S.. : : 12) 0:4 gm. 
Tartar. ; : : : we, 
Boil 1-14 hours. 
