Intercalation, rudimentary, to equate lunar and solar years, [325] sqq.

Interregnum on intercalary days, [328] sq.

Inversion of social ranks at the Saturnalia and kindred festivals, [308], [350], [407]

Ireland, Twelfth Night in, [321] sq.

Iroquois, their “festival of dreams,” [127];

their use of scapegoats, [209] sq., [233]

Iser Mountains in Silesia, [163]

Iserlohn in Westphalia, [266]

Ishtar, a great Babylonian goddess, [365];