1. Progress of neurology Author(s): Barker, Lewellys F. (Lewellys Franklin), 1867-1943 Publication: [Philadelphia : s.n., 1899?] Subject(s): Nervous System Physiological Phenomena
2. On the progress of neurology Author(s): Barker, Lewellys F. (Lewellys Franklin), 1867-1943 Publication: [New Haven? : s.n., 1899?] Subject(s): Neurology -- methodsNervous System