From a circular lately issued it appears that Dr. Freke, in 1851 ( Dublin Medical Press , page 322), propounded the doctrine that all organic beings have descended from one primordial form. His grounds of belief and treatment of the subject are wholly different from mine; but as Dr. Freke has now ( 1861 ) published his essay on the Origin of Species by Means of Organic Affinity , the difficult attempt to give any idea of his views would be superfluous on my part.