Nägeli, reversion of cultivated plants, 107.
Natural selection, 112, 361, 704, 705.
Nature, mechanical conception of, 634;
harmony of, 697.
Neumayr and Paul, on _Melanopsis_, 275.
_Noctuæ_, change of colour in larvæ, 166;
number of legs in young larvæ, 166, 520;
ontogeny of larvæ, 520.
Noll, Dr., larva of _Ach. Atropos_, 324.
North America, glaciation of, 622.
Nurse-breeding in Hymenoptera and Diptera, 402.
_Nymphalidæ_, larval classification, 435.