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ltdn �nbtntiDnS. Recent Foreilln Inyentlons. Nr:w Composition for P i cture Frames, o t c. A patent has been taken out by E. Gibbs, London, for manufacturing molded articles from a composition made of the asphaltum of tar and fi ne brick dust. This asphaltum is the residue left in the retorts in distilling gas tar to obtain naphtha. It is kneaded with one part of brick dust, and then molded into the desired form for picture frames, or any other article desired. From such cheap ma terials, itdoi:10.1038/scientificamerican06071856-308a fatcat:g3piyhngrfevndpndlygthggai