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This book teaches you everything about one of the most useful and lesser-known surveying instruments.
Invented in the 1870s, the Abney level grew popular in the 20th century and is still in use today by foresters, surveyors, geologists, and safety inspectors.
"Next to the compass, the Abney is probably the most essential and popular surveying instrument in use in the Forest Service."
It's considered as a clinometer mainly used in surveying rugged lands and forests. And it's favored over other tools due to its convenient size, ease of operation, and relative precision.
The book is full of illustrations, displaying how to operate the Abney level for beginners and how to optimize it for experienced workers. It also details its common usages and how to best carry them out. So whether you're a field worker who wants to have an edge with a handy tool or an engineer who wants to know their way around the production workshop, this book will prove invaluable!
"The numerous activities to which it is adapted, its stability and simplicity of design, its ease and speed of manipulation, and the relatively high precision that is so readily obtained by the careful and experienced operator have made this instrument a favorite of all practical field men who have had an opportunity to give it a thorough trial."
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