The influence of fluxes and non-fluxes upon the change in the porosity and the specific gravity of some clays
A 1907 ceramics research paper by Albert Bleininger and Joseph Kennedy Moore, issued by the University of Illinois at Urbana for potters and clay technologists studying how fluxes alter porosity and specific gravity. Its plates are hand-lettered line graphs on ruled grids, plotting percent porosity against flint, spar and shale ratios at numbered cone temperatures.
