Abbott, Faraday's letters to, 241, 246.
Aberdeen University, Maxwell appointed professor in, 284;
Young's report on, 203.
Absorption, Rumford's experiments on, 185;
of sun's rays by cloth of different colours, 99.
Academy of Sciences, Franklin nominated Foreign Associate of, 111.
Adjustment of the eye, Young's paper on the, 200.
AEpinus's completion of Franklin's theory, 77.
Air, Boyle's conception of the constitution of, 19.
Air-pump, Boyle's experiments with, 19;
constructed by Boyle, 27.
American Independence, Declaration of, 113.
American Philosophical Society, foundation of, 61.
Ampere's theory, Faraday's views on, 257.
Anchor-ring experiment, Faraday's, 260.
Arago's experiment, 264.
Argand lamp, efficiency of, 188.
Armstrong gun, principle of the, 180.
Atmospheric electricity, Faraday's experiments on, 254;
obtained by a pointed rod, 84.
Autobiography of Franklin, 39.
Availability of energy, 326.