164 



TRANSACTIONS OF THE 



[JUNE 6, 



No. 10138. 



CuSO, 0.800 gm. 



Boil for H hours ; take out, wash, and dye in a bath of 



Wood 5.000 gms. 



Chalk 0.800 gm. 



Boil for 1 hour. 



Note. — To mordant wool efficiently with Aluminium Sulph., pre- 

 pare the following solution : — 



H,0 1000.00 gms. 



AUS0,)3 8.00 " 



Tartar Y.OO " 



Immerse the wool in the cold solution ; raise the temperature 

 gradually to the boiling-point in the course of 1-1^ hours ; continue 

 boiling ^ hour longer, then wash well. 



Cochineal. 



Reddish-purple.— ^o. 1 (10065). 



CuSO, .... 

 Boil I hour ; take out and wash well. 



Cochineal 

 in separate bath. Boil 1 hour. 



1.00 gm. 



1.2 gms. 



Purplish slate.— No. 2 (10061). 



FeSO, 0.8 gm. 



Tartar 2.00 gms. 



Boil I hour ; take out, wash, dye in separate bath for 1 hour at 

 100° C. 



Cochineal ..... 1.2 gms. 



Purple.— No. 8 (10064). 



FeSO, 0.4 gm. 



K^C^ 0.4 " 



Cochineal ..... 1.2 gms. 



Enter flannel at 50° C. ; raise to boil; boil 1 hour. 



Boil 20 minutes, cool down; enter wool, boil 1 hour; soak over 

 night. 



No. 10051. Same, using 0.5 dye, 0.3 Tartar, 0.8 cc. Spirits. 



