11.   MIT biology professor Rudolf Jaenisch said he has reviewed several of these accounts, which describe the experiments in detail.

12.   NASA scientist Dennis Morrison described an experiment that compressed a tumor-fighting drug into a special miniature balloon and directing the drug into the tumor.

13.   Scientific papers describing the experiments have been submitted to the journals Physical Review Letters and Applied Physics Letters.

14.   Students write their observations and hypotheses, and describe their experiments in journals.

15.   The mouse experiments are described in the current issue of the Proceedings of the National Academy of Sciences.

16.   The papers describe experiments in which researchers trained mice to fear certain lights, sounds and environments.

17.   The University of Maryland group described the experiment in the journal Physical Review Letters in September.

18.   These experiments have been described in earlier reports.

19.   Watson described an experiment in which melanin was found to have a Viagralike effect.

20.   Friedman spoke in an interview Friday after describing the experiments at the annual meeting of the American Psychological Association.