Papules,

Chambers's Encyclopaedia, Volume 7: Maltebrun to Pearson, p. 745

Papules, or PIMPLES, are 'solid small elevations of the skin,' and may be either pale in colour or inflammatory and more or less red. Papules occur as an early stage in the development of the eruption in many skin diseases—e.g. in eczema, where they speedily become vesicles; or in acne, where they become pustules. The papular diseases proper, where the eruption in its fully developed form consists of papules, are lichen and prurigo.

Source scan(s): p. 0760