550 pages of reprints of slide rule instructions, for the use of collectors, educators and students. All ephemera is currently archived in the International Slide Rule Museum Library. Instruction manuals, for the most part, are no longer available, Slide rule production ended in the mid 1970's and instruction manuals have deteriorated and are rapidly disappearing over time. The slide rule models themselves , now considered vintage math instruments, are still in abundance, and in the hands of private collections, museums, and many family homes. These volumes, organized by manufacturers, provide instructions for the most popular models, as well as some special designs. The scans from the faded and wrinkled manuals, have been "restored" digitally in order improve their clarity to provide decent black printing on white pages. All "noise", speckles, staple marks, etc., have been cleaned off the original scans, to improve the reader's experience. Where required, as in this volume, permissions have been obtained from manufacturers that are still in existence. Navigation Instruction Books in Volume 16: Book 1 – Airtours Air Navigation Slide Rule, ANS.1 & Tricolore Flying Calculator, CTP.1 Handbook. Book 2 – Air Force Type MB-2A, Handbook of Operating Instructions for Computer – Air Navigation, True Air Speed, Mach No., Wind Components, Supersonics. Book 3 – Instructions for Use of Navigational Computer Type “B”. American Airlines Inc., 1943. Book 4 – Instructions for (Ship) Pitch-Speed-RPM, Time-Distance-Speed, Coasting and Cross Drift Detector Computers (2 Disc Set). U.S. Army Transportation Corps. American Hydromath Co. 1943. Book 5 – Instructions for Use Aristo Aviat 610, 613, 617, 618 and AviatJet 647. 1956. Book 6 – How to Use the Douglas Sky Rule Model 100. 1951. Made by Pickett for the Douglas Aircraft Co. Book 7– The Slide Rule for Sea and Air Navigation by J.C Podmore. An introduction to the slide rule, with special refernce to Navigation. 1977. Book 8 – The Slide Rule for Ship's Officers by J.C Podmore. A treatise on slide rules for cargo, navigation and gen-eral use on board a ship both in port and at sea. 1949.. Book 9 – The Fowler Nautical Calculator Instructions. Designed to be used with the G.H.A. Almanac. By Dr. Ernest P. Carmody. Book 10 – How to use your Safetech E-6B Computer. FDF-51A/57/60 Dead Reckoning Computer. Safetech, Inc. 1975. Book 11 – Air Navigation. Instructions for use of the “Unique” Navigational Slide Rule with Solutions to Typical Practical Problems. Includes Supple-ment for other types of “Unique” slide rules. 1975. 34 pages. Book 12 – Instructions for the Dalton Dead Reckoning Computer Type E-6B. Weems System of Navigation. Commercial version. 1944. Appendix – Philip Dalton's U.S. Patent #2,097,116. Plotting and Computing Device, Oct. 26, 1937. Basis for the Dead Reckoning Computer and E-6B.