Toluidine blue O, 34, 69, 115, 197, 



258, 269, 305 

 absorption curve of, 108 

 Toluylene blue, 102, 257, 267 

 Toluyene red, 126 

 Tony red, 86 



Tri-acid stain, Ehrlich's, 241 

 Pappenheim panoptic, 249 

 Tri-amino-tri-phenyl methanes, 146- 



171 

 "Triosin", 189 



Tri-phenyl methanes, 139-175 

 Tropaeolin D, 81 

 Tropaeolin G, 80, 82 

 Tropaeolin O, 99 

 Tropaeolin 00, 82 

 Tropaeolin 000 No. 1, 82 

 Tropaeolin 000 No. 2, 83 

 Tropaeolin Y, 99 

 Trypaflavine, 208 

 Trypan blue, 96, 254, 267 

 Trypan red, 93, 254, 266 

 TTC, 235 

 Tubercle organism, staining of, 82, 



146, 172, 174, 187 

 Tumor tissue, staining of, 68, 122, 141, 



153, 209 



Union green B, 78 



Uranin, 186 



Uses and standardization of biological 



stains, 9-22 

 Uses of stains, 11-15 



Vaginal smears, staining of, 89, 212 

 VanGieson's connective tissue stain, 



66, 89, 144, 153, 219 

 Vesuvin, 90 

 Vesuvin NR, B, R, 92 



Victoria blue B, 35, 174, 256, 277 

 Victoria blue R, 35, 173, 256, 277 

 Victoria 4R, 167, 255, 276 

 Victoria green, 258 

 Victoria green B or WB, 141 



War, biological stains in time of, 15 



Water blue, 168 



Wool green BS, BSNA or C, 175 



Wool green S, 175, 256, 277 



W^ool orange 2G, 72 



Wool red, 84 



Wright's stain, 243-248, 327 



Xanthene dyes, 177-210 



Xanthin, 209 



XL Carmoisene 6R, 73 



Xylene cyanol FF, 171, 255, 277 



"Xylidine ponceau", 73, 74, 75, 77 



Xylidine ponceau 3RS, 77 



Victoria green G, 99 



Victoria rubin 0, 84 

 Violamine SB, 183 

 Violamine R, 182, 256, 278 

 Violet BN salt, 234 

 Violet C, G, or 7B, 160 

 Violet PDH, 119 

 Violet R, RR, or J^RN, 155 

 Vital new red, 96, 254, 267 

 Vital red, 94, 254, 257 

 Vital staining, 92, 94, 95, 96, 117, 170, 

 171, 226 



Yeast, staining of, 92, 94, 121, 173, 174 

 Yellow corrallin, 172 

 Yellow M, 80 

 YeUow WR, 82 



367 



