[6] Observations in Medicine. Second Series, p. 27.
[7] Art. Sleep. Cyclopedia of Anatomy and Physiology, vol. iv. part 1, p. 681.
[8] Chapters on Mental Physiology. London, 1852, p. 105.
[9] Essays on Life, Sleep, Pain, etc. Philadelphia, 1852, pp. 63 and 64.
[10] Epilepsy and Epileptiform Seizures. London, 1858, p. 123.
[11] Nouveaux Éléments de la Science de l’Homme. 3me édition. Paris, 1858, vol. ii. p. 7, et seq.
[12] Rapports du Physique et du Morale de l’Homme. Paris, 1824, p. 379.
[13] The Physiology of Common Life. New York, 1860, vol. ii. p. 305.
[14] Philosophy of Sleep. Second edition, 1850, p. 5.
[15] The Haven of Health, chiefly made for the comfort of Students, and consequently for all those that have a care for their health, etc. By Thomas Cogan, Master of Arts and Batchelor of Physic. London, 1612, p. 332.