Classical, culture, the good and bad effects of, 347; scholars, not the only educated people, 345.
Classics, on instruction in, 338-374; the scientific, 368.
Classification in science, 255.
Clausius, on thermodynamics, 165; on reversible cycles, 176.
Claviatur, Mach's, 42-43.
Club-law, 335.
Cochlea, the, a species of piano-forte, 19.
Cockchafer, 86.
Coefficient of self-induction, 250, 252.
Colophonium, solution of, 7.
Color, acoustic, 36.
Color-sensation, 210.
Color-signs, their economy, 192.
Colors, origin of the names of, 239.
Column, body moving behind a, 202.
Communication, its functions, import and fruits, 197, 238 et seq.; by language, 237; high importance of, 191 et seq.
Comparative physics, 239.
Comparison in science, 231, 238 et seq.
Computation, a principle of æsthetics, 34.
Concepts, abstract, defined, 250-252; metrical, in electricity, 107 et seq.
Conceptual, meaning of the term, 240.
Conceptual thought, 192.
Concha, 18.
Condensers, electrical, 125 et seq. 132, footnote.
Conductors and non-conductors. See Electrical, etc.
Conformity in the deportment of the energies, 171-175.
Confusion of objects, cause of, 95.
Conic sections, 257.
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