Note 83 — BULLETIN OF THE NUTTALL ORNITHOLOGICAL CLUB. VOL. VII. July, 1882. No. 3. (continued 2)

Dr. C. Fr. Krukenberg. Die Farbstoffe der Federn. 2 Mittheilung, in Dessen Verg.—phys. Stud., 2 R., I. Abth., 1882, SS 151–171.