||Capt. A. G. Blance
||Imray Laurie Norie & Wilson
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One hundred and eighty years ol publication involving many new editions and reprints afford ti searching test of ihe usefulness and value of any publication designed to meet the exacting requirements of navigators and Ihe shipping industry. Since J. W. Norie published ihe first edition of his Complete Set of Nautical Tables and Epitome of Practical Navigation in 1803. The tables have undergone a continuing process of change to maintain their usefulness to the modern practical navigator. During these years many changes to the tables have been necessary in both content and presentation to conform with changing techniques of navigation, but the aim of the editors has always been to have user friendly navigational tables which could be used quickly and easily under shipboard conditions. This has resulted in many changes to the tables aimed at removing much of the tedium of interpolation, so enabling the navigator to obtain the answers to navigational problems quickly with the minimum of probability of error. Certain tables and data are also included which are not readily available on board ship or are only used in the examination room, but the physical dimensions of the book impose strict limits on what can be included with the result that it is impossible to include all the tables the editor would wish. In the present edition, the Star's Total Correction Table inside the back cover, the Moon's Total Correction Table and the extended Star's Total Correction Table have been redesigned to reduce interpolation to a minimum.