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For those interested, here's a discription of the latest version of "CN in the GPS Age,"  which says "Revised & Expanded" on its cover (copyright 2011).

Preface to the Revised and Expanded Edition:

 My goal in writing this book has been to present an accurate, clear, and comprehensive treatment of celestial navigation, while simultaneously enabling the reader to work a sight reduction after reading only a few pages.  This edition now provides an even shorter and easier path to useful celestial navigation by introducing simple tabular methods first.   Then optional calculator methods follow for those wishing to take full advantage of their flexibility.

         The section on stars has been expanded to include a more complete treatment of using H.O. 249 (UK’s NP 303) for stars, which then leads into planning sights of stars and planets, along with details on star-planet identification and viewing. The chapter on special sights has been expanded to treat three different Polaris sight reductions, speed corrections for meridian shots, and even obtaining LOPs without a sextant. Chapter 10 now includes more discussions on constructing plotting sheets; using universal plotting sheets; making three different kinds of running fixes; performing compass deviation checks at sea; and using ocean pilot charts for planning voyages.

         Finally, in several places it was possible to improve the discussion by making minor changes, adding more detail, and more figures.

And yes Stan, you're still acknwledged on page ix (along with several others).

John K.