ON THE ACTION OF LIGHT UPON DYED COLOURS. 379 



Wool Book L 



Acid Eeds. 20. Palatine Scarlet. From ;«-xylidine and naphthol-di-sulphonic acid. 



S. and J. 48. 

 „ 24. Cotton Scarlet NT. From amido-azo-benzene and /3-naphthol-di- 



sulphonic acid G. 

 „ 26. Croce'in Scarlet 3 B. From amido-azo-benzene-mono-sulphonic acid 



and ;8-naplithol-mono-sulplionic acid B. S. and J. 120. 

 „ 35. Double Brilliant Scarlet 3 K. From /3-naphthylamine-sulphonic acid 



Br. and a-naphthol-mono-sulphonic acid NVV. S. and J. 95. 

 „ 36. Cochineal Red A. From naphthionic acid and j3-naphthol-di- 



sulplionic acid G. S. and J. 88. 

 „ 44. Fast Ponceau B. From amido-azo-benzene-di-sulphonic acid and 



/8-naphthol. S. and J. 121. 

 „ 45. Milling Red FR. Constitution not published. 



„ 46. Erythrin X. From amido-azo-benzene and ;8-naphthol-tri-sulphonic 



acid. S. and J. 111. 

 „ 47. Urocein Scarlet 7 B. From amido-azo-toluene-mono-sulphonic acid 



and )3-naphthol-mono-sulphonic acid B. S. and J. 125. 

 „ 48. Ponceau S extra. From amido-azo-benzeue-di-sulphonic acid and 



/3-naphthol-di-sulphonic acid R. S. and J. 122. 

 „ 51. Phoenix Red A. Constitution not published. 



„ 53. Cloth Red G. From amido-azo-benzene and o-naphthol-mono- 



sulphonic acid NW. S. and J. lOG. 

 „ 55. Ponceau 6 R. From naphthionic acid and /8-naphthol-tri-sulphonic 



acid. S. and J. 90. 

 „ 56. Coccinin B. From amido-^-cresol-methyl-ether and j3-naphthol-di- 



sulphonic acid R. S. and J. 56. 

 „ 57. Brilliant Crocein 9 B. Constitution not published. 



„ 63. Croce'in AZ. From amido-azo-benzene and a-naphthol-di-sulphonic 



acid. 

 „ 65. Erythrin P. From amido-azo-benzene and an unknown naphthol- 



sulphonic acid. 

 „ 85. Croce'in 3 B. From amido-azo-toluene and a-naphthol-di-sulphonic 



acid Sch. S. and J. 112. 

 „ 87. Cloth Red B. From amido-azo-toluene and a-naphthol-mono-sul- 



phonic acid NW. S. and J. 115. 

 „ 91. Orseillin BB. From amido-azo-toluene-mono-sulphonic acid and 



a-naphthol-mono-sulphonic acid N'W. S. and J. 124. 

 „ 93. Cloth Red No. OB. From amido-azo-toluene and j8-naphthol-di- 



sulphonic acid R. S. and J. 114. 

 97. Azo Fuchsin G. From sulphanilic acid and di-oxy-naphthalene 



(l-8)-a-mono-sulphonic acid. S. and J. 229. 

 „ 98. Azo Fuchsin B. From toluidine and di-oxy-naphthalene (l-8)-a-mono- 



sulphonic acid. S. and J. 228. 

 Wool Book II. 



Chromotropes. 3. Chromotrope 6 B cryst. Constitution not published. 

 „ 4. Chromotrope 8 B cryst. Constitution not published. 



„ 5. Chromotrope 10 B cryst. Constitution not published. 



InduUne Colours. Hosindulines. 

 Wool Book I. 



Acid Eeds. 95. Azo Carmine. Sodium salt of phenyi-rosinduline-di-sulphonic acid. 

 S. and J. 369. 



Class V. Very Fast Colodrs. 

 The colours of this class show a very gradual fading during the 

 difTerent periods, and even after a year's exposure a moderately good 

 colour remains. 



Azo Colours. 

 Wool Book II. 



Chromotropes. 1. Chromotrope 2 R cryst. Constitution not published. 

 „ 2. Chromotrope 2 B cryst. Constitution not published. 



