Topography for freshwater fish culture / text, A.G. Coche ; graphic design, T. Laughlin.

By: Series: FAO training series ; 16/1 | Simple methods for aquaculturePublication details: Rome : FAO ; Lanham, MD : UNIPUB [distributor], 1988-Description: v. <1 > : ill. (some col.) ; 22 x 28 cmISBN:
  • 9251025908 (v. 1)
Subject(s): DDC classification:
  • 639.31  20 COC
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Holdings
Item type Current library Call number Copy number Status Date due Barcode
Book Open Access Book Open Access Agriculture and Animal Sciences Library 639.31 COC 1 (Browse shelf(Opens below)) 1 Available 0028896

CONTENTS

General background
What is topography ?
Purpose of this manual
There are two kinds of lines in topography

Measuring horizontal distances
How to measure distances and by pacing
How to chain with a rope
How to with bands or tapes
How to measure distance by chaining

Measuring horizontal angles
How to use a graphometer
How to use a magnetic compass
How to measure horizontal angles by the right angle

Measuring vertical angles and slopes
Introduction
How to measure with the homemade clinometer :1
2,3,4..

Measuring height differences
How to use the straight-edge level
How to use the line level
How to use the flexible tube water level

Includes bibliographical references.

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