1. Huxley as a popularizer of Darwin and as a teacher of biology emphasized rather different aspects of science.

2. And Reagan was, in a sense, their popularizer.

3. Isaac Asimov, the prodigious popularizer of science, reacts hotly to the Jastrow book.

4. Each was an original thinker in her own right. But each also made a markas a great popularizer of liberal ideas.

5. The episode underscored his recurring role as a refiner and popularizer of existing inventions.