426 NATURAL HISTORY [chap. xvm. 



complete. I myself assiduously collected birds in Celebes 

 for nearly ten months, and my assistant, Mr. Allen, spent 

 two months in the Sula islands. The Dutch naturalist 

 Forsten spent two years in Northern Celebes (twenty 

 years before my visit), and collections of birds had also 

 been sent to Holland from Macassar. The French ship 

 of discovery, L' Astrolabe, also touched at Men ado and 

 procured collections. Since my return home, the Dutch 

 naturalists Rosenberg and Bernstein have made extensive 

 collections both in North Celebes and in the Sula islands ; 

 yet all their researches combined, have only added eight 

 species of land birds to those forming part of my own 

 collection — a fact which renders it almost certain that 

 there are very few more to discover. 



Besides Salayer and Boutong on the south, with Peling 

 and Bungay on the east, the three islands of the Sula 

 (or Zula) Archipelago also belong zoologically to Celebes, 

 although their position is such, that it would seem more 

 natural to group them with the Moluccas. About 48 land 

 birds are now known from the Sula group, and if we reject 

 from these, five species which have a wide range over the 

 Archipelago, the remainder are much more characteristic 

 of Celebes than of the Moluccas. Thirty-one species are 

 identical with those of the former island, and four are 

 representatives of Celebes forms, while only eleven are 

 Moluccan species, and two more representatives. 



