A. RED LAKES. 



Magenta and magenta reds. 



Rhodamin B, G, S, 6G, 12G. Bluish red to reddish pink. 

 Safranins. 



Ponceau 4GBL. Yellow. 

 Ponceau GL, GR. Medium yellow. 

 Ponceau 4R. Blue. 

 Scarlet 3R. Blue. 

 Fast red 0. Deep blue. 

 Reds and maroons from the last four mixed. 



Eosins, phloxins, rose bengal vermilionettes, alizarins red, scarlet, brown, 

 maroon. 



B. ORANGE LAKES. 



Mandarin R, G. Brilliant orange Orange II. O, R. Ponceau 4GBL. 



RG. 



C. YELLOW LAKES. 



Auramin. Metanil yellow. 



Thioflavin T. Quinolin yellow. 



Naphthol yellow S. Tartrazin. 



D. BROWN LAKES. 

 Bismarck brown. Acid brown B. 



E. GREEN LAKES. 



Acid green D. Diamond green. 



Ethyl green. Coeruleine. 



R BLUE LAKES. 



Nile blue A. Diphenylamin blue. 



Victoria blue. Patent blue BN. 



Naphthalin blue. Erioglaucin blues. 



Methylene blue B. Basle blue. 



Alkali blue D. New blue. 



Neutral blue. Water blue. 



G. VIOLET LAKES. 



Methyl violet B. Gallein. 



Rhodamins. 



H. BLACK LAKE. 

 Acid black FHA. 



II. Natural Colors of Vegetable and Animal Origin. 



The following list has been compiled from various sources and, 

 as far as possible, verified by consulting botanical literature and b}^ 

 free reference to Dr. Hans Rupe's "Die Chemie der nattirlichen 

 Farbstoffe" (Braunschweig, 1900): 



Alder bark: Source Alnus glut'mosa. Yellow. 



Alkanet: Source Baphorhiza tinctona (Alkanna tinctoria Tausch.; Anchusa tinc- 



lorlaL.). Used in coloring medicines, oils, pomades, wine, etc., red to crimson. 



Alkanna green has also been prepared from the root. a 



<*J. Soc. Chem. Ind., 1903, 512. 



