2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/28053This paper has been submitted to Science. It summarizes the experimental evidence for (and against) the interlayer theory. It was delayed in posting by clerical error.10 pages, LaTeX file, 3 figures on request by post - no .ps format availableCondensed MatterC-axis Electrodynamics as Evidence for the Interlayer Theory of High Tc Superconductivitytext