r (W. McD.) spent the greater part of a year in the Baram district as a member of the Cambridge Anthropological Expedition, which, under the leadership of Dr. A. C. Haddon, went out to the Torres Straits in the year 1897. During this visit we co-operated in collecting material for a joint paper on the animal cults of Sarawak; and this co-operation, having proved itself profitable, suggested to us an extension of our joint program to the form of a book embodying all the information already to hand and whatever additional information might be obtainable during the years that one of us was still to spend in Borneo. The book therefore may be said to have been begun in the year 1898 and to have been in progress since that time; but it has been put into shape only during the last few years, when we have been able to come together for the actual writing of it.
During the year 1899 Dr. A. C. Haddon spent some months in the Baram district, together with other members of the Cambridge Expedition (Drs. C. G. Selig