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At least part of the low rating of lectures in the curriculum stems more from the poor quality of the speaker than from any inherent fault in lectures qua lectures. Although there are many treatises, manuals, and texts on techniques of lecturing, from my experience in listening to people present scientific material at medical meetings I suspect that most speakers are oblivious to them. While one probably can do well enough by taking as his model any good speaker, it is well to remember a few simple rules and regulations which a good speaker needs to keep in mind regardless of his experience. Very few speakers are without a few minor and characteristic tics. Some interrupt every sentence by uhs, ohs, ahs, or grimaces. Others fail to address the platform, talk into their vest, wave the flashlight pointer around as though they were in competition with a planetarium, indicate that