F.R.A.S., Fellow of the Royal Astronomical Society.
F.R.C.P., Fellow of the Royal College of Physicians.
F.R.C.S., Fellow of the Royal College of Surgeons.
F.R.G.S., Fellow of the Royal Geographical Society.
F.R.S., Fellow of the Royal Society.
F.R.S.E., Fellow of the Royal Society of Edinburgh.
H.M.S., Her Majesty’s Ship.
H.R.H., His (or Her) Royal Highness.
i.e., That is.
Inst., Instant (the present month).