| A. B. R. | Alfred Barton Rendle, M.A., D.Sc, F.R.S., F.L.S.- Keeper, Department of Botany, British Museum. Author of Text Book on Classification of Flowering Plants; &c.
|  | Fruit. |
| A. B. W. K. | Sir Alexander Blackie William Kennedy, LL.D., F.R.S.- Emeritus Professor of Engineering, University College, London. Consulting Engineer to Board of Ordnance.
| | Friction. |
| A. Ca. | Arthur Cayley, LL.D., F.R.S.- See the biographical article, Cayley, Arthur.
|  | Gauss. |
| A. E. H. L. | Augustus Edward Hough Love, M.A., D.Sc., F.R.S.- Sedleian Professor of Natural Philosophy in the University of Oxford. Hon. Fellow of Queen's College; formerly Fellow of St John's College, Cambridge. Secretary to the London Mathematical Society.
| | Function: Functions of Real Variables. |
| A. E. S. | Arthur Everett Shipley, M.A., D.Sc., F.R.S.- Master of Christ's College, Cambridge. Reader in Zoology, Cambridge University. Joint-editor of the Cambridge Natural History.
| | Gastrotricha. |
| A. Ge. | Sir Archibald Geikie, LL.D.- See the biographical article, Geikie, Sir A.
| | Geology. |
| A. Go.* | Rev. Alexander Gordon, M.A.- Lecturer on Church History in the University of Manchester.
| | Franck, Sebastian; Gallars. |
| A. G. B.* | Hon. Archibald Graeme Bell, M.Inst.C.E.- Director of Public Works and Inspector of Mines, Trinidad. Member of Executive and Legislative Councils, Inst.C.E.
| | Georgetown, British Guiana. |
| A. G. D. | Arthur George Doughty, C.M.G., M.A., Litt.D., F.R.,Hist.S.- Dominion Archivist of Canada. Member of the Geographical Board of Canada. Author of The Cradle of New France; &c. Joint-editor of Documents relating to the Constitutional History of Canada.
|  | Frontenac et Palluau. |
| A. H. Sm. | Arthur Hamilton Smith, M.A., F.S.A.- Keeper of the Department of Greek and Roman Antiquities in the British Museum. Member of the Imperial German Archaeological Institute. Author of Catalogue of Greek Sculpture in the British Museum; &c.
| | Gem: II. (in part) |
| A. M.* | Rev. Allen Menzies, D.D.- Professor of Divinity and Biblical Criticism, University of St Andrews. Author of History of Religion; &c. Editor of Review of Theology and Philosophy.
| | Free Church of Scotland (in part). |
| A. M. C. | Agnes Mary Clerke.- See the biographical article, Clerke, Agnes M.
| | Galileo. |
| A. N. | Alfred Newton, F.R.S.- See the biographical article, Newton, Alfred.
| | Frigate-Bird; Gadwall;
Gannet; Gare Fowl. |
| A. N. B. | Alfred Neave Brayshaw, LL.B.- Author of Bible Notes on the Hebrew Prophets.
| | Friends, Society of. |
| A. N. W. | Alfred North Whitehead, M.A., D.Sc, F.R.S.- Fellow and Lecturer in Mathematics, Trinity College, Cambridge. Author of A Treatise on Universal Algebra; &c.
| | Geometry: VI. (in part) and VII. |
| A. R. C. | Alexander Ross Clarke, C.B., F.R.S.- Colonel, Royal Engineers. Royal Medallist, Royal Society, 1887. In charge of the trigonometrical operations of the Ordnance Survey, 1854–1881.
| | Geodesy (in part). |
| A. S. M. | Alexander Stuart Murray, LL.D.- See the biographical article, Murray, Alexander Stuart.
| | Gem: II. (in part). |
| A. W. H.* | Arthur William Holland.- Formerly Scholar of St John's College, Oxford. Bacon Scholar of Gray's Inn, 1900.
|  | Frederick II., Roman Emperor; French Revolution:
Republican Calendar;
Germany: History (in part) and Bibliography. |