Contents. 
XIX 
LIST OF MAPS. 
Map I. Celebes and the Neighbouring Islands Frontispiece 
For the preparation of Map I (Celebes and the Neighbouring Islands) with the 
sea-depths our cartographers were directed to make use of the following publications : 
0. Kriimmel; Das Belief des austral-asiatischen IVIittelmeeres : Ztschr. f. wiss. 
Geogr. m, 1, Taf I (1882). 
Stenfoort en Siethoff: Atlas, Ned. Bez. in Oost-Indie, 1883—1885 (Topogr. 
Inrich ting te’s Gravenhage). 
0. M. Kan: Bodengesteldheid der Eilanden en diepte der Zeeen van den in- 
dischen Archipel: Tdschr. Ned. Aardr. Gen. (2) V (Versl.), 202, Kaart 
IV (1888). 
id.: Kaart van den Ned.-Ind. Arch. (1:6,000,000) s. a. (after 1889). 
H. Berghaus: Atlas der Hydrographie (Berghaus’ Physik. Atlas, Abth. II), 
Karte X (25) (1891). 
Further, the Dutch and English Admiralty Charts concerning the region round 
Celebes; articles in the Annalen der Hydrographie 13. Jahrg. 1885, 207, and 25. Jahrg. 
1897, 352, Taf, 11; an article in the Tdschr. Ned. Aardr. Gen. (2), III (Versl.), 485: 
Zeediepten in den Oost-Ind. Archipel, 1886; and others. 
» II. Celebes Frontispiece 
In preparing Map H (Celebes) use has been made of the maps in various 
Dutch and German Atlasses, of S. C. J. W. van Musschenbroek’s map of the Gulf 
of Tomini or Gorontalo and the neighboming territories, with its accompanying notes 
(Tdschr. Aardr. Gen. IV, Kaart 2, 1878, p. 93), and of the recent special maps of 
Drs. P. & F. Sarasin, viz.: 
1. Zeitschr. Ges. Erdk. Berlin, 1894, XXIX, Taf. 13 (Eegion between the 
Minahassa and Gorontalo, North Celebes). 
2. ib. 1895, XXX, Taf. 10 (Region between Buol and the Gulf of Tomini, 
North Celebes). 
3. ib. Taf. 15 (Central Celebes). 
4. ib. 1896, XXXI, Taf 2 (South-west Celebes). 
5. Verb. d. Ges. f. Erdk. Berlin, 1896, XXm, Taf. 3 (South-east Celebes). 
Besides this Drs. P. & F. Sarasin have had the great kindness to look 
over our map and to express general approval of it. We have also made use of 
de Hollander: Handleiding Volkenk. Ned. Oost-Indie, 4. ed. 1882 — 4. 
The map shows only the names of the places mentioned in the text where 
birds have been collected. 
» III. Winds and Bains: April — September Pag. 17 
» IV. Winds and Bains; October — March » 17 
* V. Distribution of the genus Gacatua » 128 
» VI. Distribution of the genus Loricuhis » 149 
* Vn. Distribution of the Bucerotidae * 242 
