used but once in a lifetime, [93].
Isotropism, of the ovum, [176].
Ivy, climbing shoots of, [393], [399].
Jäger, on heredity, [172], [206].
Jordan, on varieties, [269].
Julin, on spermatogenesis in Ascaris, [375].
Kallima, mimicry of, [280], [306].
Kant, on the transmission of mutilations, [423].