{ "item_title" : "A New And Accurate Method Of Finding A Ship's Position At Sea, By Projection On Mercator's Chart (1851)", "item_author" : [" Thomas H. Sumner "], "item_description" : "A New And Accurate Method Of Finding A Ship�������s Position At Sea, By Projection On Mercator�������s Chart (1851) is a book written by Thomas H. Sumner. The book provides a detailed explanation of a new and accurate method of finding a ship's position at sea using Mercator's Chart. The method involves the use of a sextant and a chronometer to determine the ship's latitude and longitude, which are then projected onto the chart to obtain the ship's position. The book includes detailed instructions on how to use the method, as well as examples and illustrations to help readers understand the process. It also includes a history of navigation and a discussion of other methods of determining a ship's position at sea. This book is an essential resource for anyone interested in navigation, maritime history, or the science of cartography.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://covers1.booksamillion.com/covers/bam/1/16/454/074/1164540742_b.jpg", "price_data" : { "retail_price" : "20.95", "online_price" : "20.95", "our_price" : "20.95", "club_price" : "20.95", "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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