-----------              -----------
|0    |     |            |     |     |
|   --|--   |            |   --|--   |
|  |0 | 0|  |            |  |0 | 1|  |
1.  |--|--|--|--|        2.  |--|--|--|--|
|  |1 |  |  |            |  |0 |  |  |
|   --|--   |            |   --|--   |
|0    |     |            |     |     |
-----------              -----------

[See p. 72]

-----------              -----------
|     |     |            |     |    0|
|   --|--   |            |   --|--   |
|  |0 | 0|  |            |  |  |  |  |
3.  |--|--|--|--|        4.  |--|--|--|--|
|  |1 | 0|  |            |  |0 |  |  |
|   --|--   |            |   --|--   |
|     |     |            |     |    0|
-----------              -----------

__________

Mark, in a large Diagram, the following pairs of Propositions from the preceding Section:  then mark a small Diagram in accordance with it, &c.

5.  No. 13. [see p. 49] 9.  No. 17. 6.  No. 14. 10.  No. 18. 7.  No. 15. 11.  No. 19. [see p. 50] 8.  No. 16. 12.  No. 20.

__________

Mark, on a large Diagram, the following Pairs of Propositions:  then mark a small Diagram, &c.  These are, in fact, Pairs of Premisses for Syllogisms:  and the results, read off from the small Diagram, are the conclusions.

13.  No exciting books suit feverish patients; Unexciting books make one drowsy.

14.  Some, who deserve the fair, get their deserts; None but the brave deserve the fair.

15.  No children are patient; No impatient person can sit still.

[See pp. 72-5]

16.  All pigs are fat; No skeletons are fat.

17.  No monkeys are soldiers; All monkeys are mischievous.

18.  None of my cousins are just; No judges are unjust.

19.  Some days are rainy; Rainy days are tiresome.

20.  All medicine is nasty; Senna is a medicine.

21.  Some Jews are rich; All Patagonians are Gentiles.

22.  All teetotalers like sugar; No nightingale drinks wine.

23.  No muffins are wholesome; All buns are unwholesome.

24.  No fat creatures run well; Some greyhounds run well.

25.  All soldiers march; Some youths are not soldiers.

26.  Sugar is sweet; Salt is not sweet.

27.  Some eggs are hard-boiled; No eggs are uncrackable.

28.  There are no Jews in the house; There are no Gentiles in the garden.

[See pp. 75-82]

29.  All battles are noisy; What makes no noise may escape notice.

30.  No Jews are mad; All Rabbis are Jews.

31.  There are no fish that cannot swim; Some skates are fish.

32.  All passionate people are unreasonable; Some orators are passionate.

[See pp. 82-84]

CHAPTER III.