A Description Of Two New Instruments, By Which Astronomers & Nautical Men May Ascertain Their Correct Distance From Any Known Meridian, Etc

A Description Of Two New Instruments, By Which Astronomers & Nautical Men May Ascertain Their Correct Distance From Any Known Meridian, Etc: With An Appendix

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Table of Contents:

Copyright

INTRODUCTION.

INSTRUCTIONS TO ASCERTAIN THE LONGITUDE

APPENDIX.