244 REPORTS ON THE STATE OF SCIENCE. — 1920. 



Appendix. 



List of StrBSTAUcES of which the Absoeption Spectea have beest Exa^iined in 

 THE IJltea- Violet and Visible Regions since the Publication of the Last 

 Report in 1916. 



A 



Acetic acid and salts. Hantzseh. ' Ber.,' 50, 1422 { 1917). 



Acetone. Lifschitz. ' Zeit. wiss. Phot.,' 16, 140 (1916). 



Acetylenedicarboxylic acid. Macbeth and Stewart. ' Trans.,' Ill, 829 (1917). 



Alizarin. Meek. ' Trans.,' Ill, 969 (1917). 



Alizarm-blue. Meek. ' Trans.,' Ill, 969 (1917). 



Alizarin -Bordeaux. Meek. 'Trans.,' Ill, 969 (1917). 



Alizarin- cyanine. Meek. 'Trans.,' Ill, 969 (1917). 



Aminoazobenzene. Ghosh and Watson. ' Trans.,' Ill, 815 (1917). 



AnthragaUol. Meek. ' Trans.,' Ill, 969 (1917). 



Aurin. Ghosh and Watson. ' Trans.,' Ill, 815 (1917). 



B 



Behenohc acid. Macbeth and Stewart. ' Trans.,' Ill, 829 (1917). 

 Benzeneazoanthranol. Sircar. ' Trans.,' 109, 757 (1916). 

 Benzene- l-azo-4-anthrol. Sircar. ' Trans.,' 109, 757 (1916). 

 Benzeneazocatechol. Ghosh and Watson. ' Trans.,' Ill, 815 (1917). 

 Benzeneazo-1.5-dihydroxynaphthalene. Ghosh and Watson. 'Trans.,' Ill, 815 



(1917). 

 Benzene-l-azo-4-naphthol. Sircar. ' Trans.,' 109, 757 (1916). 

 Benzeneazo-o-naphthol. Ghosh and Watson. ' Trans.,' Ill, 815 (1917). 

 Benzeneazo-i3-naphthol. Ghosh and Watson. 'Trans.,' Ill, 815 (1917). 

 Benzeneazo-/3-naphthylaniine. Ghosh and Watson. ' Trans.,' Ill, 815 (1917). 

 Benzeneazophenol. Ghosh and Watson. ' Trans.,' Ill, 815 (1917). 



Sircar. ' Trans.,' 109, 757 (1916). 

 Benzeneazopyrogallol. Ghosh and Watson. ' Trans.,' Ill, 815 (1917). 

 Benzeneazoquinol. Ghosh and Watson. 'Trans.,' Ill, 815 (1917). 

 Benzeneazoresorcinol. Ghosh and Watson. ' Trans.,' Ill, 815 (1917). 

 Benzene-l-azo-l'.2'.3'.4'-tetrahydro-4-nai5hthol. Sircar. 'Trans.,' 109,757 (1916). 

 Benzoic acid. Ley. ' Zeit. wiss. Phot.,' 18, 178 (1918). 

 /)-Bromobenzene-l-azo-4-anthrol. Sircar. ' Trans.,' 109, 757 (1916). 

 p-Bromobenzene-l-azo-4-naphthol. Sircar. ' Trans.,' 109, 757 (1916). 

 p-Bromobenzeneazophenol. Sircar. ' Trans.,' 109, 757 (1916). 

 p-Bromobenzene-l-azo-l'.2'.3'.4'-tetrahydro-4-naphthol. Sircar. 'Trans.,' 109,757 



(1916). 

 Bromodinitrotriphenylmethane. Hantzseh and Hein. ' Ber.,' 52, 493 (1919). 



Chloranil. Lifschitz. ' Ber.,' 49, 2050 (1916). 



Chrysoidine. Ghosh and Watson. ' Trans.,' Ill, 815 (1917). 



Cinnamic acid. Ley. ' Ber.,' 51, 1808 (1918). 



Ley. ' Zeit. wiss. Phot.,' 18, 178 (1918). 

 „ „ Macbeth and Stewart. ' Trans.,' Ill, 829 (1917). 



Stobbe. ' Ber.,' 52, 1021 (1919). 

 Cinnamylideneacetic acid. Macbeth and Stewart. ' Trans.,' Ill, 829 (1917). 

 Cobalt acetate. Ley and Ficken. ' Ber.,' 50, 1123 (1917). 

 Cobalt picolate. Ley and Ficken. ' Ber.,' 50, 1123 (1917). 

 Crystal violet. Hantzseh. ' Ber.,' 52, 509 (1919). 



„ „ Kehrmaim and Sandoz. ' Ber.,' 51, 915 (1918). 



)> 5, derivatives. Kehrmann and Sandoz. ' Ber.,' 51, 915 (1918). 



nitrileof. Lifschitz. ' Ber.,' 52, 1919 (1919). 

 Cyanoacridine and Cyanopyronin Dye-stufEs. Kehrmann and Sandoz. ' Ber.,' 53, 

 63 (1920). 



