An account of two cases seen in Sarawak, both being Europeans and in bothAncylostoma caninum being responsible. Infection was acquired in a swampy part of the golf course which is frequented by pariah dogs heavily infected with this parasite. Many treatments proved unavailing, cure at length being obtained by rubbing oil of chenopodium into the track for ten minutes. Subsequently 1 part of this oil was mixed with 3 parts of castor oil, the mixture being applied in the same way. Whilst the one application to one area was sufficient, it took 10 to 14 days to work over both feet in each case