Nurseries of Termites, [387]

Nusbaum on embryology, [149], [152]

Nyctiborides, [240]

Nymph, [157];

of dragon-fly, [418], [419], [420], [422], [426];

of Ephemeridae, [432] f., [432], [433], [434], [435], [436]

Nymphidina, [465], [472]

Nyssonides, [565]

Oak-galls, [527]

Occiput, [94]