High-T$_{c}$ superconductivity originates in BaO or similar planes, not in cuprate-planes.

CuO$_{2}$ planes are not needed for high-T$_{c}$ superconductivity, as demonstrated by Sr$_{2}$YRuO$_{6}$ and Ba$_{2}$YRuO$_{6}$, weakly doped on Ru sites with Cu but having \textit{no cuprate-planes}. These materials have onsets of superconductivity at 49K and 93K, respectively. We have shown that the related Cu-Ru materials Gd$_{2-z}$Ce$_{z}$Sr$_{2}$Cu$_{2}$RuO$_{10}$ and GdSr$_{2}$Cu$_{2}$RuO$_{8}$ do not superconduct in their cuprate planes, which are magnetic, but in their SrO layers (with onset T$_{c }\approx $ 45K) [1]. The claims that the cuprate-planes superconduct are based on a one-point unconfirmed jump in the Bell Labs data that was supposedly confirmed by Jorgensen [2], although \textit{Jorgensen's data actually} \textit{contradict the Bell datum}. In all the materials we have studied, and even in YBa$_{2}$Cu$_{3}$O$_{7}$, the superconductivity occurs in the bulk in layers that do not contain Cu, namely \textit{in BaO layers of} YBa$_{2}$Cu$_{3}$O$_{7}$, which have $s$-wave character, not $d$-wave character [3]. \newline [1] J. D. Dow \textit{et al.,} J. Vac. Sci. Technol. \textbf{B 24}, 1977 (2006). \newline [2] J. D. Jorgensen, Phys. Today, 34 (\textbf{June}, 1991). \newline [3] D. R. Harshman \textit{et al}., Phys. Rev. \textbf{B 69}, 174505 (2004).