Detroit tests of learning aptitude; a new instrument of mental diagnosis: examiner's handbook,

These tests were developed in the Detroit psychological clinic, a department of the Detroit public schools. cf. Pref.

"I am still learning" : late works by masters.

Mode of access: Internet.

Examen de ingenios; or, The tryal of wits. Discovering the great difference of wits among men, and what sort of learning suits best with each genius.

Classified for chess: p. 196.