Fluid telescope, Barlow’s
Foley
Forbes, Prof.  J.D. 
Foster, Messrs
Fox, Alfred
Freedom of the City of London
Freemantle, Sir T.
French, Dr
Friends, Personal friends at Cambridge
Fries, Prof. 
Galbraith
Galle
Galvanic communication, Time-signals, Clocks, and Registration
  (see also Earth currents)
Gambard
Gas Act
Gauss
Gautier
Geodesy
Geology
Geological Society
Germany
Gibson, pupil
Gilbert, Messrs
Gilbert, Davies
Gill, astronomer
Gladstone, W.E. 
Glaisher, assistant
Glasgow Observatory
Gordon
Gosset
Goulburn, Chancellor of the Exchequer
Gould, Dr B.A. 
Goussel
Graduation of circles
Grant, of Glenmoriston
Great Circle sailing (see Navigation)
Great Eastern (see Ships)
Great Exhibition
Great Gable
Green, Commander U.S.N. 
Greenwich
Greenwich Observatory, before his appointment as Astronomer Royal
Greenwich Observatory: 
  Appointment as Astronomer Royal, and subsequently as Visitor
  Buildings and grounds in,
  Instruments
  Assistants
  Computations
  Papers and manuscripts (arrangement of)
  Estimates
  Printed Observations
  Visitations and Reports
  General
Gresswell
Groombridge’s Catalogue (see Stars)
Guest, Caius College
Haarlem
Hall, Col. 
Halley and Halley’s Comet
Hamilton
Hamilton, Sir W.R. 
Hamilton, Admiral
Hansard
Hansen, Prof. 
Hansteen
Harbours
Harcourt, Rev. W. Vernon
Hartnup, astronomer
Harton Colliery experiments
Haviland, Dr
Hawkes, Trinity College
Hebrew Scriptures
Heliograph
Hencke
Henderson, astronomer
Henslow, Prof. 
Herbert, G.
Hereford
Herschel, Sir John
Herschel, Miss Caroline
Herschel, Col.  J.
Hervey, pupil
Higman, Tutor, Trinity College
Hilgard, U.S.A. 
Himalaya Expedition
Hind, Moderator
Hind, Superintendent Nautical Almanac
Hopkins
Hovenden, pupil
Hudson
Huggins, Dr
Humboldt, Baron A.
Humphreys
Hussey, Dr
Hustler, Tutor, Trinity College
Hyde Parker, Admiral
Hygrometers
Ibbotson, pupil
Iliff
Illnesses
Inequality, Venus and Earth
Inglis, Sir R.
Institut de France
Institution of Civil Engineers
Inverness, Northern Institution of
Ipswich Lectures
Ireland, notes of
Ivory
Jackson
Jackson, John
James, Sir H.
Janus (see Steam-engines)
Jarrow (see Harbours)
Jeffries
Jerrard, Dr
Jervis, Major
Jeune, Dr, V.C. of Oxford
Johnson, Capt. 
Johnson, astronomer
Jones, instrument-makers
Jones, R.
Journeys: 
  Scotland and Cumberland; Swansea;
  Derbyshire, &c.; Wales; Keswick, &c.; Cornwall,
  &c.; Orleans; Lake District, &c.; Continent,
  Observatories, &c.; Cornwall, &c.; Derbyshire; Oxford
  &c.; Cumberland; Ireland; Scotland; Derbyshire,