On the necessity for contracting cavities between the venous trunks and the ventricles of the heart; on the use of venous sinuses in the head; On the Wonderful Provision made for the Transition from the Foetal to the Breathing State; on Palpitation; on Death; and on Life: With Reflections on the Treatment of Animals By John Walker - Walker, John 1759-1830 (printed by T. Maccliesh and Co. for William Mudie; and Darton and Harvey, London, 1799)