Note 67 — BULLETIN OF THE NUTTALL ORNITHOLOGICAL CLUB. VOL. VII. July, 1882. No. 3.
Reading edition
Descriptions of the various pigments may be found in:
Krukenberg, Dr. C. Fr. W.; Vergl.-phys. Studien, 1 R, v. Abth. 1881, SS. 72–99, u. 2 R, 1 Abth., 1882, SS. 151–171.
Bogdanow, A., Note sur le pigment des touracos. Compt. rend., T. LIV, 1862, pp. 660–663. Études sur les causes de la coloration des Oiseaux. Compt. rend T. XLVI, 1858, pp. 780, 781
Church, H. H., Researches on Turacine, an animal pigment containing copper. Chemical News, vol. XIX, 1869, No. 496.
Blasius, W., A. D. Sitzungsb des Vereins f. Naturwiss, zur Braunschweig. Braunschweigische Anzeigen, 1877, Nr. 29.