De anima brutorum

Chap. XIV is devoted to the sense of hearing; in it Willis described the “paracusis of Willis” (p. 73). English translation, 1683.

A probable description of myasthenia gravis is given in Pars. 2, Cap. IX.

In Pars 2, Cap. III is an account of lethargy, and Cap. XIII gives an account of “stupidity or foolishness”. Part 2, Cap. 1, deals with headache.

Two Oxford editions were published in 1672; the first, in quarto, in which a description of general paralysis appears on pp. 392-432, and the second, in octavo, in which it appears on pp. 278-307. In his Practice of Physick (1684) the translation of this section appears on pp. 161-78.