{"product_id":"the-abney-level-handbook-how-to-use-the-topographic-abney-hand-level-clinometer-tool-a-guide-for-the-experienced-and-beginners-complete-wi-paperback","title":"The Abney Level Handbook: How to Use the Topographic Abney Hand Level \/ Clinometer Tool - A Guide for the Experienced and Beginners, Complete wi - Paperback","description":"\u003cdiv\u003e\u003cp style=\"text-align: right;\"\u003e\u003ca href=\"https:\/\/reportcopyrightinfringement.com\/\" target=\"_blank\" rel=\"nofollow\"\u003e\u003cb\u003eReport copyright infringement\u003c\/b\u003e\u003c\/a\u003e\u003c\/p\u003e\u003c\/div\u003e\u003cp\u003eby \u003cb\u003eHartley Amasa Calkins\u003c\/b\u003e (Author), \u003cb\u003eY. B. Yule\u003c\/b\u003e (Author)\u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eThis official handbook of the U.S. Forest Service explains how to use the Abney hand level, a clinometer tool used to measure angles in various natural environments.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe Abney tool was invented by William de Wiveleslie Abney, an English astronomer, during the 1870s. By the time the device was recognized and widely-used in the early 20\u003csup\u003eth\u003c\/sup\u003e century, it had been refined. Though earlier guides cover its basic usage, this U.S. government commissioned handbook offers exhaustive demonstration and instruction on the tool's abilities. The authors - Hartley Calkins and Y. B. Yule - were themselves experienced reconnaissance surveyors with ample experience traversing and measuring the rugged woodland landscapes of North America.\u003c\/p\u003e\u003cp\u003eThe Abney level is used to this day by land surveyors, geologists, foresters, and safety inspectors; in good hands, it is reliable for its accuracy. At roughly $60-100 in price it is affordable, durable, lightweight and - being handheld - portable. \u003cem\u003eThe Abney Level Handbook\u003c\/em\u003e, first published in 1927 and expanded in 1935, remains the authoritative source simply as it covers the subject exhaustively well. This edition faithfully reproduces the words and instructions given, and includes all of the diagrams, graphs, drawings and charts present in the 1935 version.\u003c\/p\u003e\n            \u003cdiv\u003e\n\u003cstrong\u003eNumber of Pages:\u003c\/strong\u003e 48\u003c\/div\u003e\n            \u003cdiv\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 0.12 x 9 x 6 IN\u003c\/div\u003e\n            \u003cdiv\u003e\n\u003cstrong\u003eIllustrated:\u003c\/strong\u003e Yes\u003c\/div\u003e\n            \u003cdiv\u003e\n\u003cstrong\u003ePublication Date:\u003c\/strong\u003e December 18, 2018\u003c\/div\u003e\n            ","brand":"BooksCloud","offers":[{"title":"Default Title","offer_id":44433567842406,"sku":"9781789870503","price":18.94,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0599\/7255\/0758\/files\/dGtUb2dIditkREUvUVRyV1d2S2tVZz09.webp?v=1770389442","url":"https:\/\/infinitylightwa.com\/products\/the-abney-level-handbook-how-to-use-the-topographic-abney-hand-level-clinometer-tool-a-guide-for-the-experienced-and-beginners-complete-wi-paperback","provider":"Infinity Light","version":"1.0","type":"link"}