Stanford scientific aptitude test, scoring key, manual of directions and explanatory booklet.

United States Coast Guard examination for cadetship: aptitude examination.

(Differential aptitude series)

GRAHAM, HERBERT B. The Roeder-Graham general aptitude profile, by Herbert B. Graham & Wesley S. Roeder.

It is worthy of mention that Washington's favorite quotation was Addison's "'Tis not in mortals to command success," but he also utilized with considerable aptitude quotations from Shakespeare and Sterne.