By M.S. Garber and F.C. Koopman
This report is available as a pdf below
The series of manuals on techniques describes procedures for planning and executing specialized work in water-resources investigations. The material is grouped under major subject headings called "Books" and further subdivided into sections and chapters. Section A of Book 8 is on instruments for measurement of water level.
The unit of publication, the chapter, is limited to a narrow field of subject matter. This format permits flexibility in revision and publication as the need arises. "Methods of measuring water levels in deep wells" is the first chapter to be published under Section A of Book 8.
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