- Macleay, system of classification, 719.
- Magnetism of gases, 352.
- Mallet, on earthquakes, 314.
- Malus, polarised light, 530.
- Mammalia, characters of, 681.
- Manchester Literary and Philosophical Society, papers quoted, 137, 143, 168.
- Mansel, on disjunctive propositions, 69.
- Mars, white spots of, 596.
- Maskelyne, on personal error, 347;
- deviation of plumbline, 369;
- density of earth, 566.
- Mass, unit of, 317, 325.
- Mathematical science, 767;
- incompleteness of, 754.
- Matter, uniform properties of, 603;
- variable properties, 606.
- Matthiessen, 528.
- Maximum points, 371.
- Maxwell, Professor Clerk, on the balance, 304;
- natural system of standards, 311, 319;
- velocity of electricity, 442;
- on Faraday, 580;
- his book on Matter and Motion, 634.
- Mayer, proposed repeating circle, 290;
- on mechanical equivalent of heat, 568, 572.
- Mean, etymology of, 359–360;
- geometric, 362;
- fictitious, 363;
- precise, 365;
- probable, 385;
- rejection of, 389;
- method of, 357, 554.
- Mean error, 387.
- Meaning, of names, 25;
- of propositions, 47.
- Measurement, of phenomena, 270;
- methods of, 282;
- instruments, 284;
- indirect, 296;
Table of Contents
INDEX.
552