Nematoids, opinion of Villot respecting the “free”, [484]
Nestlings destroyed by tapeworms, [440]
Newts, Echinorhynchus anthuris of water, [455]
Nycteribiidæ as parasitic insects, [6]
Octobothrium lanceolatum, allusion to the eggs of, [41]
Odontobius ceti from Balæna australis, [427]
Œstridæ, the, a family of parasitic insects, [6]
" infesting the ox and sheep, [351]
Œstrus (Gastrophilus) equi of the horse, [385]
" hominis, Mr Higginson’s case of, [271]
Olulaniasis of the cat, [310]
Onchocerca reticulata of the horse, [385]