Illustrations of Nichol Colour illustrations showing lesions on the skin of an individual identified only as Nichol. Each of the seven folios contains multiple small illustrations, many of which are accompanied by short handwritten annotations in an unknown hand [possibly Wallace?]. A manuscript note in an unknown hand on the envelope in which illustrations were originally stored reads 'Wallace kept a negro [Nichol] at his house to make observations on his skin. Drawings were by his two young daughters under his direction [in this envelope]. The elder daughter died in her 18th year of Scarlet Fever. Drawings of experiments on the skin of the negro, Nichol'. [1815-1835]