2. Ping-pong is lawn tennis in miniature, with a few modifications.
3. An inevitable dualism bisects nature.
4. Never inflict corporal chastisement for intellectual faults.
5. Children should be led to make their own investigations and to draw their own inferences.
6. The black willow is an excellent tonic as well as a powerful antiseptic.
7. Give the Anglo-Saxon equivalent for "nocturnal."
8. A negative exponent signifies the reciprocal of what the expression would be if the exponent were positive.
+Theme XC.+—Write an explanation of one of the following:
1. Birds of a feather flock together.
2. Truths and roses have thorns about them.