Among most if not all native races certain persons occupy themselves with religious services and at the same time cure disease. In Borneo, as far as my experience goes, these priest-doctors, whether male or female, are generally recognised by the name blian, or balian. Although some tribes have their own and different designations, for the sake of convenience I shall call them all blians. While there are both male and female blians, the service of women is regarded as more valuable, therefore commands higher remuneration than that received by men. A Dayak explained to me: As there are two sexes among the antohs, so there are also male and female blians. He or she on occasion pretends to be possessed of helpful antohs, in some parts of Borneo called sangiangs. Besides assisting the blians in their work they enable them to give advice in regard to the future, illness, or the affairs of daily life. A blian may be possessed by as many as fifty good antohs, which do not remain long at a time. Although in the remote past men sometimes saw good or evil spirits, at present nobody is able to do so except blians, who also sing in a language that only they and the antohs understand. The blian does not know how to take omens from birds and read the liver of the pig. There may be one expert along this line in the kampong and there may be none. The blians of the tribes visited by me can neither make rain nor afflict people with illness. Among the Long-Glats I saw them directing the great triennial feast tàsa, at which they were the chief performers. The constant occupation of the blians, however, is to cure disease which is caused by a malicious antoh longing to eat human blood and desiring to drive away the human soul. When hungry an antoh makes somebody ill. The blian's rites, songs, dances, and sacrifices aim to induce a good antoh to chase away or kill the evil one which has taken possession of the patient, and thus make an opportunity for the frightened soul to return, which restores the man to health. This, without undue generalisation, is a short summary of the religious ideas which I found on the Mahakam and in Southern Borneo, more especially those of the Penihing, Katingan, and Murung. Further details will be found among descriptions of the different tribes. Shortly afterward we all made an excursion up the river as far as Batu Boa, which, as is often the case, contains a Dayak as well as a Malay kampong. At the first one, a forlorn and desolate looking place, the kapala, who had an unusually large goitre, told me that eighteen men had been engaged by the captain for his journey northward from there, which definitely precluded any prospect of ours for an overland expedition, even if under other conditions it would have been possible. As for the Malays, I found them rather distant, and was glad to return to Tumbang Marowei.