Fr.—Francis.

F. R. A. S.—Fellow of the Royal Astronomical Society.

F. R. C. S. L.—Fellow of the Royal College of Surgeons, London.

Fred.—Frederick.

F. R. G. S.—Fellow of the Royal Geographical Society.

Fri.—Friday.

F. R. S.—Fellow of the Royal Society.

Frs.—Frisian.

F. R. S. E.—Fellow of the Royal Society, Edinburgh.

F. R. S. L.—Fellow of the Royal Society, London.