Field Cricket, [283]–284, [300]–347, [350]

Field-mouse, [183]

Flea, [102]

Florian, Jean Pierre Claris de, [302], [306]

Fly (see also [House-fly]), [3], [11], [22]–23, [118], [121], [146], [179], [183], [199]–200, [256], [263], [444]–445

Foamy Cicadella, vii, [287]n, [424]–446

Fox, [3], [308]

Franklin, Benjamin, [335]

Frog, [257]

Frog-hopper, Frog-spit (see [Foamy Cicadella])