Feb.—February.
Fec.—Fecit, he did it.
Fem.—Feminine.
F. E. S.—Fellow of the Entomological Society; of the Ethnological Society.
Ff.—The Pandects.
F. G. S.—Fellow of the Geological Society.
F. H. S.—Fellow of the Horticultural Society.
Fi. fa.—Fieri facias, cause it to be done.
Fid. Def.—Defender of the Faith.
Fig.—Figure.