Paper, 'Interference with icterus [jaundice] in occluded ductus choledochus' by Vaughan Harley Harley writes: 'In 1880, Kufferath pointed out that when both the ducti thoracici— right and left—and the ductus choledochus are ligatured icterus does not appear. From his having only kept the dogs experimented upon alive from 1 to 2½ hours, I was induced to test the value of the statement by a series of experiments on animals kept alive for much longer periods. The following are the results obtained, conducted under the guidance of Professor Ludwig, to whom my best thanks are due for the valuable assistance he gave me.' Annotations in pencil and ink. Subject: Pathology / Physiology Received 23 March 1892. Read 31 March 1892. Communicated by George Harley. A version of this paper was published in volume 51 of the Proceedings of the Royal Society as 'Interference with icterus in occluded ductus choledochus'. 1892