• Physician Thomas Bateman, 1778
• Dermatologist Laurent - Théodore Biett, 1781

Thomas Bateman

He earned his medical degree from the Edinburgh Royal Infirmary School of Medicine. Bateman was a student, colleague and successor to Robert Willan (1757 – 1812) in regards to modern dermatological practices of classification.

Prior to the 19th century, classification of skin diseases were based on symptomatic characteristics. Dr. Willan was the first to propose a rational naming standard based on the appearance of the skin disorder. In the treatise On Cutaneous Diseases, Willan was the first to classify skin diseases from an anatomical point of view. However, Willan died in 1812, leaving Bateman to continue and expand on the work of his mentor. In 1813 Bateman published A Practical Synopsis of Cutaneous Diseases According to the Arrangement of Dr Willan, and in 1817 published an atlas called the Delineations of Cutaneous Disease. Today there is a copy of the atlas in the library of the Royal College of Physicians in London.

Bateman is credited for providing names and descriptions for a number of dermatological diseases, including lichen urticatus, alopecia areata, erythema multiforme and molluscum contagiosum. The work of Willan and Bateman influenced many physicians, such as Thomas Addison (1793 – 1860), who was a pupil of Bateman, and Laurent - Théodore Biett (1781 – 1840), who introduced their methodology into French medicine.

In 1786 he moved with his family to Clermont - Ferrand. He received his initial medical education at the Hotel - Dieu in Clermont - Ferrand, relocating to Paris in 1801, where he became a favorite student of Jean - Louis Alibert. When Alibert's work at the Hôpital Saint - Louis was interrupted by royal obligations, Biett filled in for his teacher. From 1813 Biett was a doctor of medicine, later becoming chief medical officer at Hôpital Saint - Louis.

Biett was not known for his published works, however two of his students, Pierre Louis Alphée Cazenave and Henri Édouard Schedel, took assiduous notes of his lectures. In 1828 Cazenave and Schedel published Abregé pratique des maladies de la peau, which was a compilation of Biett's teachings and was to became a major work in dermatology. Cazenave is credited for coining the term "lupus erythemateaux" (lupus erythematosus), derived from Biett's symptomatic descriptions of the disease.

Biett was a member of the Académie royale de Médecine, and in 1830 was awarded with the Légion d'honneur.

• Biett's collarette: a syphilitic symptom in which the center papule is encircled by a ring of scales.