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 pubhcations : 



0. Kriimmel: Das Relief des austral-asiatischen Mittelmeeres : Ztschr. f. wiss. 



Geogr. m, 1, Taf I (1882). 

 Stenfoort en Siethoff: Atlas, Ned. Bez. in Oost-Indie, 1883—1885 (Topogr. 



Inrichting te's Gravenhage). 

 C. M. Kan: Bodengesteldheid der Eilanden en diepte der Zeeen van den in- 

 dischen Archipel: Tdsohr. Ned. Aardr. Gen. (2) V (Versl.j, 202, Kaart 

 rV (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 1 1 ; an article in the Tdschr. Ned. Aardr. Gen. (2), m (Versl.), 485: 

 Zeediepten in den Oost-Ind. Archipel, 1886; and others. 



» II. Celebes Frontispiece 



In preparing Map 11 (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 neighbouiiag 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 (Region 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. Berlm, 1896, XXni, 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 Eains: April — September Pag. 17 



» IV. Winds and Rains: October — March » 17 



» V. Distribution of the genus Cacatua » 128 



» VI. Distribution of the genus Loricuhis » 149 



» VU. Distribution of the Bucerotidae » 242 



