(3) Students into those who are industrious, athletic and shiftless.

(4) Flowers into roses, carnations and lilies.

(5) Planets into those which are larger than the earth and those which are smaller.

13. QUESTIONS FOR ORIGINAL THOUGHT AND INVESTIGATION.

(1) Analyze by mathematical partition the terms world, plant, book.

(2) Analyze by logical partition the terms granite, water, air.

(3) What rule is violated if the logical division is applied to the genus rather than the proximate genus?

(4) Divide logically the following terms: school, religion, book, vegetable, life.

(5) “Each new subdivision may adopt a new principle of division.” Illustrate this.

(6) Explain and illustrate the meaning of the terms super-ordinate, sub-ordinate and co-ordinate.