8
See Priestley's History of Vision, vol. i. p. 51.
9
"Art de Penser."
10
See Condillac's Art de Penser. In the chapter "on the use of signs," this young man is mentioned.
11
Vol. II.
12
Rousseau.
13
V. Preface to Berthollet's Chemical Nomenclature.
14
V. Condillac's "Art de Penser."
15
Major Cartwright. See his Journal, &c.
16
V. Chapter on Mechanics.
17
V. Adela and Theodore.
18
Chapter on Tasks.
19
Zoonomia, vol. i. page 435.
20
Cicero.
21
Lucian.