Excerpt from The Mexican Calendar Stone, 1879
We are indebted to Stephen Salisbury, Jr., Esq., for a translation of Doctor Valentini"s lecture on the "Mexican Calendar Stone," "Vortrag fiber den Mexicanischen Calendar-Stein, gehalten von Prof. Ph. Это и многое другое вы найдете в книге The Mexican Calendar Stone, 1879 (Classic Reprint) (Philipp J. J. Valentini)