An address on sleeping sickness in Uganda was delivered by Captain Greig, I.M.S., to the Southern Medical Society of Glasgow on 16th November, 1905. The address, which was illustrated by numerous lantern slides, was listened to with interest by the large number of members present; and at the conclusion of his remarks the lecturer was awarded a hearty vote of thanks. The following abstract has been made from Report No. VI of the Sleeping Sickness Commission of the Royal Society, of which Commission Captain Greig was a member.