Invention,

421, 475, 484, 485, 509-512, 517, 619

"IQ,"

274-275

Isolation,

431-432, 435-437, 455-459, 468,479

James,

117, 129, 136, 331, 365, 418, 480, 511, 551, 561, 571

James-Lange theory,

128-130