Gary Patterson is Professor of Chemistry at Carnegie Mellon University. He is the immediate past-chair of the History of Chemistry Division of the American Chemical Society. He is Chair of the Heritage Council at the Chemical Heritage Foundation.

• 1. Introduction to "Preceptors in Chemistry" 2. Herman Boerhaave and the Use of Demonstration-Experiments in Chemistry Courses 3. A Non-Publishing Preceptor Published: The Three Editions of Joseph Black's Elements of Chemistry 4. William Henry and The Elements of Experimental Chemistry 5. Mrs. Jane Marcet and "Conversations in Chemistry" 6. Justus von Liebig 7. Insights into the Chemical and Pedagogical Philosophy of Stanislao Cannizzaro from his Faraday Lecture 8. Mendeleev and the Chemistry Textbook in Russia 9. Fred Basolo and the (Re)naissance of American Inorganic Chemistry 10. Linus Pauling: The Right To Be Wrong 11. Concluding Reflections for "Preceptors in Chemistry" Editor's Biography Indexes