1892.] NEW YORK ACADEMY OF SCIENCES. 1T5 



No. 3 (10093). 



SnClj 0.8 gm. 



HCl . . . . . . q. s. 



Mordant, wash, and dye in separate bath of 



Barberry Root . . . .5.0 gms. 



No. 4 (10091). 



CuSO, 0.6 gm. 



Mordant, wash, and dye in separate bath of 



Barberry Root . . . .5.0 gms. 



No. 5 (10092). 



FeSO, 0.4 gm. 



Tartar 0.3 " 



Mordant, wash, and dye in separate bath of 



Barberry Root . . . .5.0 gms. 



Catechu. 

 No. 1 (10205). 



Catechu 2.00 gms. 



Boil 1-1 1^ hours; sadden in separate bath of 



KjCr^jO^ • • • . . .0.4 gm. 

 for i hour at 80°-100° C. 



No. 2 (10206). 



Same as No. 1, but sadden in bath of 



CuSO^ 0.6 gm. 



No. 3 (10207). 



Same as No. 1, but sadden in bath of 



FeSO, 0.4 gm. 



No. 4 (10208). 



Same as No. 1, but sadden in bath of 



A1,(S0J3 1.00 gm. 



No. 5 (10209). 



Same as No. 1, but sadden in bath of 



SuCL 0.4 srm. 



O' 



Logwood. 



Gray. — No. 10094. 



Logwood 0.5 gm. 



Boil ; then treat in separate bath of 



K^Cr^O^ . . . . . .0.1 gm. 



Wash well. 



