Prof. Martin Knudsen has published (Meddelelser fra Kommissionen for Havunderspgelser, Serie: Fiskeri, Bind 8, Nr. 3, 1927) an account of a new instrument which he has designed for obtaining samples ...
While at Oslo, Norway, in 1927, I devised a bottom sampler capable of withdrawing a core of mud from the sea bottom, and at the same time preserving, as in situ, the surface layer. My object was to ...
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