Excerpt from A Manual of the Principal Instruments Used in American Engineering and Surveying: Manufactured by W. And L. E. Gurley, Troy, N. Y
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Seller: Forgotten Books, London, United Kingdom
Paperback. Condition: New. Print on Demand. This book covers a range of surveying instruments used in the 19th century. The author begins by discussing the importance of a delicate magnetic needle and proceeds to explain how such a device made the Plain Compass a valuable tool in land surveying. The book then goes into detail about the Vernier Compass, which allowed surveyors to compensate for the variation of the needle, a problem that made the Plain Compass less effective. The author also describes the development of the Vernier Transit, a more sophisticated instrument that combined the features of the Vernier Compass with a telescope. The book concludes with a guide to the proper use and maintenance of these instruments. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item. Seller Inventory # 9780282034771_0
Quantity: Over 20 available
Seller: PBShop.store US, Wood Dale, IL, U.S.A.
PAP. Condition: New. New Book. Shipped from UK. Established seller since 2000. Seller Inventory # LW-9780282034771
Quantity: 15 available
Seller: PBShop.store UK, Fairford, GLOS, United Kingdom
PAP. Condition: New. New Book. Shipped from UK. Established seller since 2000. Seller Inventory # LW-9780282034771
Quantity: 15 available