On some new or rare Birds from Sumatra, Java, Ceram and the Poeloe Toedjoegroup, North of Ceram

The new birds, of which the descriptions follow here, have been collected by Mr. F. K. Baron van Dedem, who, in company with his wife, made a trip through our East-Indian possessions. They have been collected on the Volcano Sibajak in the Batak Mountains near Lake Toba in Northern Sumatra, in East Java, in Ceram and in the Poeloe Toedjoe, a group of islands north of Ceram. I have to tender my thanks to Dr. Hartert in Tring, for his help in comparing some of the specimens in the Tring and London Museums, as for some of the forms I had no material for comparison.