neutrally buoyant float (swallow float)

abbreviata ancylostomiasis duodenale behavior emergence Bogart Humphrey Brassica oleracea L. var. capitata L. crew-served weapon dredge work full-time magistrate hex washer job status Mount Lookout skew crossing skin colour subsurface structure map three dimensional photoelasticity trailing edge(of brush) Tri-K Vulcanalial wetherun yeuch