RT Journal T1 HEnri hallopeau (1842-1919) JF JAMA JO JAMA YR 1969 FD March 31 VO 207 IS 13 SP 2431 OP 2432 DO 10.1001/jama.1969.03150260091016 UL http://dx.doi.org/10.1001/jama.1969.03150260091016 AB François Henri Hallopeau was first a student of the nervous system, later a general pathologist and, only in his prime, was attracted to diseases of the skin, becoming one of the outstanding members of the French school of dermatology of the 19th century.1 He studied at the Condorcet Lycée and matriculated at the Faculty of Medicine of Paris in 1864. Following an internship at the hospitals of Paris, he presented a doctoral thesis on diseases of the spinal cord and, continuing an interest in neurologic disorders, published communications on diffuse myelitis and bulbar paralysis. He was affiliated initially with the hospitals of Tenon and St. Antoine and ultimately became physician to Hôpital Saint-Louis in 1884, which was devoted exclusively to the care of patients with diseases of the skin. This was a decisive year: his Elementary Treatise on General Pathology and Pathological Physiology appeared,2 he achieved professorial status at