The Abraham Flexner lectureship was established in 1927 at Vanderbilt University School of Medicine. An adequate endowment was provided, the income from which was to be used to secure as lecturer, at intervals of two years, some eminent physician or scientist, who remains biennially in residence for a period of two months and becomes associated with the leading personnel and students. The fourth lecturer in this series, Prof. Gunnar Nystrom, gave a number of informal lectures in the wards, operating rooms and clinics. Only five of these have been included in the present volume.
The subject of the first lecture is embolism of the arteries of the extremities and its treatment. He not only relates his extensive personal experience (thirty-five cases) but has collected and analyzed the entire Swedish material, which because of its size and of its accurate follow up has served as a model for the rest of