d by other
islands on every side, yet preserving such a marked individuality in its
forms of life; while, as regards the special features which characterise
its insects, it is, so far as yet known, absolutely unique. Unfortunately
very little is known of the botany of Celebes, but it seems probable that
its plants will to some extent partake of the speciality which so markedly
distinguishes its animals; and there is here a rich field for any botanist
who is able to penetrate to the forest-clad mountains of its interior.
{465}

APPENDIX TO CHAPTER XX

The following list of the Land Birds of Celebes and the adjacent islands
which partake of its zoological peculiarities, in which are incorporated
all the species discovered up to 1890, has been drawn up from the following
sources:--

1. A List of the Birds known to inhabit the Island of Celebes, By
Arthur, Viscount Walden, F.R.S. (Trans. Zool. Soc. 1872. Vol. viii. pt.
ii.)

2. Intorno al Genere Hermotimia. (Rchb.) Nota di Tommaso Salvadori.
(Atti della Reale Accademia delle Scienze di Torino. Vol x. 1874.)

3. Intorno a due Collezioni di Ucelli di Celebes--Note di Tommaso
Salvadori. (Annali del Mus. Civ. di St. Nat. di Genova. Vol. vii.
1875.)

4. Beitraege zur Ornithologie von Celebes und Sangir. Von Dr. Friedrich
Brueggemann. Bremen, 1876.

5. Intorno a due piccole Collezioni di Ucelli di Isole Sanghir e di
Tifore. Nota di Tommaso Salvadori. (Annali del Mus. Civ. di St. Nat. di
Genova. Vol. ix. 1876-77.)

6. Intorno alle Specie di Nettarinie delle Molucche e del Gruppo di
Celebes. Note di Tommaso Salvadori. (Atti della Reale Accad. delle
Scienze di Torino. Vol. xii. 1877.)

7. Descrizione di tre Nuove Specie di Ucelli, e note intorno ad altre
poco conosciute delle Isole Sanghir. Per Tommaso Salvadori. (L. c. Vol.
xiii. 1878.)

8. Field Notes on the Birds of Celebes. By A. B. Meyer, M.D., &c.
(Ibis, 1879.)

9. On the Collection of Birds made by Dr. Meyer during his Expedition
to New Guinea and some neighbouring Islands. By R. Boulder Sharpe.
(Mitth. d. kgl. Zool. Mus. Dresden, 1878. Heft 3.) New species from the
Sula and Sanghir Islands are described.

10. List of Birds from the Sula Islands (East of Celebes) with
Descriptions of the New Species. By Alfred Russel Wallace, F.Z.S.
(_Proc. Zool. Soc._ 1862, p. 333.)

11. The Zoological Record,