{ "item_title" : "The Sextant And Its Applications", "item_author" : [" William H. Simms "], "item_description" : "The Sextant And Its Applications: Including The Correction Of Observations For Instrumental Errors (1858) is a comprehensive guide to the use of the sextant in navigation and astronomy, written by William H. Simms. The book covers the history and theory of the sextant, as well as practical instructions for its use in measuring angles and determining positions. It also includes detailed information on the correction of observations for instrumental errors, such as index error and eccentricity. The book is aimed at sailors, navigators, and astronomers, and is written in a clear and accessible style, with numerous diagrams and illustrations to aid understanding. It is a valuable resource for anyone interested in the history and practice of celestial navigation.This scarce antiquarian book is a facsimile reprint of the old original and may contain some imperfections such as library marks and notations. Because we believe this work is culturally important, we have made it available as part of our commitment for protecting, preserving, and promoting the world's literature in affordable, high quality, modern editions, that are true to their original work.", "item_img_path" : "https://covers3.booksamillion.com/covers/bam/1/16/485/430/1164854305_b.jpg", "price_data" : { "retail_price" : "23.95", "online_price" : "23.95", "our_price" : "23.95", "club_price" : "23.95", "savings_pct" : "0", "savings_amt" : "0.00", "club_savings_pct" : "0", "club_savings_amt" : "0.00", "discount_pct" : "10", "store_price" : "" } }

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