Chirologia: Chironomia
John Bulwer
An essay on the origin of human knowledge
Étienne Bonnot de Condillac (1715-1780)
A dissertation on the influence of opinions on language, and of language on opinions
Johann David Michaelis
Introduction to the study of the history of language
Herbert A. Strong
A philosophical discourse concerning speech together with a discourse written by a learned friar
Géraud de Cordemoy
Zoonomia
Erasmus Darwin
Introduction to anthropology
Theodor Waitz
Elements of speech and discourse concerning time
William Holder