Dr. Robertson. Experimental progressive paralysis The experimental production of general paralysis. — The journal of mental science, 1909

Six years ago, the author published a paper on the development of progressive paralysis in rats after they had ingested a culture of diphtheria bacilli isolated from the bronchi of a progressive paralytic. These investigations were verified by the author and Mac Bae and were fully confirmed, and in the nerve elements were found changes characteristic of progressive paralysis. Finally, the author recently tested the effect of culture bacil. paralyticans longus in rabbits, with positive results in only one case. Dr. O'Brien experimented with the injection of diphtheria bacilli against paralytics in rats, dogs and goats and got: hibernation, stupor, muscular tension, ataxia, partial paralysis, congestive attacks and death.