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Training materials from the service of Willard T. Walls : Ephemera 19440502-19440624.
- Format:
- Book
- Language:
- English
- Physical Description:
- 1 online resource
- Summary:
- Description: Training materials for Walls including handwritten and published items; topics include echo ranging conditions, head thrown weapons, B. D. I. procedure, notes from Fleet Sound School in Key West, Florida; loose pages with diagrams of a sound range records and instruction for use of chemical range recorder.
- Notes:
- Description based on online resource (viewed on June 12, 2019).
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