The news of the death of Dr. Robert Kidston, LL.D., F.R.S., came as a great shock to the scientific world. Prior to his death he was engaged on a monumental monograph on “The Fossil Plants of the Carboniferous Rocks of Great Britain,” which was to run into ten parts. Part VI was nearing completion, and, setting holidays aside, Dr. Kidston was busy on the final proofs and was speeding them on for publication when he passed away suddenly on July 12th, 1924. The most difficult portion of the work had been accomplished. The pity is that the great palaeontologist was not permitted to finish the task. Dr. Kidston was born at Bishopton House, Renfrewshire. He was educated at Stirling High School and later at Edinburgh University where he studied Botany under Professor Hutton Balfour. He was intensely interested in Natural Science, and early in his career he was an enthusiastic investigator of the Scottish Arctic Alpine Flora. The Breadalbanes had always an attraction for him, but primarily as a botanist. The British Herbarium of Glasgow University Botany Department is enriched by many of his discoveries. But it is in his work as a Palaeontologist that he stands out pre-eminent, and as such he was recognised by the Geological Survey not only of Britain but of other European Countries. Special reference ought to be made to his work on “The Fossil Osmundaceae” which he carried out conjointly with the late Professor Gwynne-Vaughan, and also to his work on the Fossils of This 250-word extract was created in the absence of an abstract