- Algebraic, equations, 123;
- geometry, 633.
- Allotropic state, 663, 670.
- Alloys, possible number, 191;
- properties, 528.
- Alphabet, the Logical, 93, 104, 125;
- Morse, 193.
- Alphabet, permutations of letters of the, 174, 179.
- Alphabetic indexes, 714.
- Alternative relations, 67;
- exclusive and unexclusive, 205.
- Ampère, electricity, 547;
- classification, 679.
- Anagrams, 128.
- Analogy, 627;
- of logical and numerical terms, 160;
- and generalisation, 596;
- in mathematical sciences, 631;
- in theory of undulations, 635;
- in astronomy, 638;
- failure of, 641.
- Analysis, logical, 122.
- Andrews, Prof. Thomas, experiments on gaseous state, 71, 613, 665, 753.
- Angström, on spectrum, 424.
- Angular magnitude, 305, 306, 326.
- Antecedent defined, 225.
- Anticipation of Nature, 509.
- Anticipations, of Principle of Substitution, 21;
- of electric telegraph, 671.
- Apparent, equality, 275;
- sequence of events, 409.
- Approximation, theory of, 456;
- to exact laws, 462;
- mathematical principles of, 471;
- arithmetic of, 481.
- Aqueous vapour, 500.
- Aquinas, on disjunctive propositions, 69.
- Arago, photometer, 288;
- rotating disc, 535;
- his philosophic character, 592.
- Archimedes, De Arenæ Numero, 195;
- centre of gravity, 363.
Table of Contents
INDEX.
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