PREFACE vii 



C. G. Seligmann, C. S. Myers, and Mr. S. Ray); and 

 we wish to express our obligation to him for the 

 friendly encouragement in, and stimulating example 

 of, anthropological field work which he afforded us 

 during that time, as well as for later encouragement 

 and help which he has given us, especially in reading 

 the proofs of the book and in making many helpful 

 suggestions. We are indebted to him also for the 

 Appendix to this book, in which he has stated and 

 discussed the results of the extensive series of phy- 

 sical measurements of the natives that he made, 

 with our assistance, during his visit to Sarawak. 



We have pleasure in expressing here our thanks 

 to several other gentlemen to whom we are indebted 

 for help of various kinds — for permission to repro- 

 duce several photographs, to Dr. A. W. Nieuwen- 

 huis, the intrepid explorer of the interior of Dutch 

 Borneo, who in his two fine volumes [Quer durch 

 Borneo) has embodied the observations recorded 

 during two long journeys in the interior ; to Mr. 

 H. Ling Roth for the gift of the blocks used in the 

 preparation of his well-known work. The Natives oj 

 Sarawak and British North Borneo, many of which 

 we have made use of; to Dr. W. H. Furness, 

 author of The Home Life of Borneo Head-Htinters 

 (1902), for several photographic plates made by him 

 during his visits to the Baram in the years 1897 

 and 1898 ; to Drs. C. G. Seligmann and C. S. Myers 

 for permission to reproduce several photographs ; 

 to Mr. R. Shelford, formerly Curator of the Sarawak 

 Museum, for his permission to incorporate a large 

 part of a paper published jointly with one of us 

 (C. H.) on tatu in Borneo, and for measurements of 

 Land Dayaks made by him ; to Mr. R. S. Douglas, 

 formerly Assistant Officer in the Baram district and 

 now Resident of the Fourth Division of Sarawak, for 

 practical help genially afforded on many occasions. 



Finally, it is our agreeable duty to acknowledge 



