The purpose of this thesis is to present a survey of the cases of jaundice in the clinic during the past nine years, to describe the methods taken to combat the high incidence during the war years, and to compare the findings from an analysis of the cases with the view put forward by other workers and draw conclusions thereon. As the investigation commenced in 1944 information on cases prior to that date was derived from the case-history cards, while the remainder came under personal supervision. Altogether, 374 cases have been studied. of these, 310 were males and 64 females. The thesis has been arranged in the form of (1) an introduction In which an outline of the current views held on arsenotherapy jaundice is given), (2) descriptions of the individual cases and (3) an analysis of the findings with discussions thereon.