Table of Contents
Letters
| Letter to the Editor | |
| Paul Jardetzky | 18 |
Articles
| From Guidon to Neomycin and Heracles in Twenty Short Lessons | |
| William J. Clancey | 40 |
| CRSL: A Language for classificatory Problem Solving and Uncertainty Handling | |
| Tom Bylander, Sanjay Mittal | 66 |
| Blackboard Application Systems, Blackboard Systems and a Knowledge Engineering Perspective | |
| H. Penny Nii | 82 |
| Strategy and Business Planning for Artificial Intelligence Companies: A Guide for Entrepreneurs | |
| Robert A. Friedenberg, Ralph L. Hensler | 111 |
| The Wager | |
| Christopher Cherniak | 120 |
Reports
| Research in Artificial Intelligence at the University of Pennsylvania | |
| Brant A. Cheikes | 128 |
| Artificial Intelligence Research and Applications at the NASA Johnson Space Center, Part Two | |
| Kathleen Jurica Healey | 146 |
Book Reviews
| Review of The Connection Machine | |
| Michael J. Black | 169 |
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