The hydrophone, an instrument allowing to spot and trail submarines by sound

Title (Dublin Core): The hydrophone, an instrument allowing to spot and trail submarines by sound
Subject (Dublin Core): en Technology; en Anti-submarines
Article Title and/or Image Caption (Dublin Core): Spotting and Trailing Submarines by Sound
Contributor (Dublin Core): Ernest Welleck (Article author)
Language (Dublin Core): eng
Temporal Coverage (Dublin Core): Interwar period
Date Issued (Dublin Core): 1919-07
Is Part Of (Dublin Core): Popular Science Monthly, v. 95, n. 1, 1919
pages (Bibliographic Ontology): 17
Rights (Dublin Core): Public domain (Google digitized)
Source (Dublin Core): Google Books
References (Dublin Core): Dunois class; English Channel; United Kingdom of Great Britain and Ireland; French Third Republic; Georges Walser
Archived by (Dublin Core): Davide Donà; Marco Bortolami (editor)