INDEX 



325 



Linear measurement, 22, 23 



Linear velocity, measurement of 

 uniform, 37, 38 



Liquids, 10 14 ; can be separ- 

 ated into drops, 14; communi- 

 cate pressure, 12, 13 ; find their 

 level, 11, 12; flow of, 11; 

 passage of the electric current 

 through, 199 205 ; possess 

 fluidity, 7 ; solution of, 213 



Lower oxide .of carbon, 292, 293 



MANUFACTURE of phosphorus, 282 ; 

 of sulphuric acid, 255 



Marking the boiling point, 140, 

 141 ; the freezing point, 139, 

 140 



Marsh gas, 294, 295 



Mass, and its measurement, 44 

 54 ; units of, in the British 

 system, 44, 45 ; in the metric 

 45 ; weight of, 47, 48 



Masses, determined, 48, 49 ; 

 equality of, 55 



Matter, compressibility of, 4, 5 ; 

 divisibility of, 3 ; elasticity of, 

 5, 6 ; is indestructible, 16 18 ; 

 inertia of, 6 ; in relation to 

 motion, 55 73 ; physical pro- 

 perties and states of, 1 20 ; 

 porosity of, 3, 4 



Mean solar day, 34, 35 



Measurement, linear, 22, 23 ; 

 mass and its, 44 54 ; of area, 

 24, 25 ; of areas, exercises in, 

 25 27 ; of kinetic energy, 122 ; 

 of length, 21 24 ; of quantities 

 of heat, 144, 145 ; of tempera- 

 ture, 136, 137 ; of uniform 

 acceleration, 38, 39 ; of uniform 

 linear velocity, 37, 38 ; of 

 volume, 28 32 ; of volumes, 

 29, 30; of work, 119, 120 



Measuring time, instruments for, 

 35, 36 



Melting-point, 151 



Mercurial barometer, principle of 

 the, 108110 



Mercury a convenient liquid for 

 barometers, 111, 112 



Metals, action of sulphuric acid 

 on, 254, 255 ; and non-metals, 

 208, 209 



Metric, relation between British 

 and, units of area, 27 ; of length, 

 23, 24 ; of volume, 30 ; system, 

 units of mass, in the, 45 ; units 

 of mass, relation between British 

 and, 45 



Mineral water, 244 



Mirror, formation of an image by 

 a plane, 166 



Mirrors, reflection from spherical, 

 166168 



Mixtures and compounds, 213, 214 



Molecular weights, 273, 274 



Molecules, atoms and, 270 



Moment, the, of a force, 49, 50 



Moments, 49 



Momentum, 56 59 ; conservation 

 of, 57, 58 



Motion, definition of, 36 ; matter 

 in relation to, 55 73 ; Newton's 

 first law of, 6061 ; of bodies 

 falling from rest, 62, 63 



Movements, the principle of, 

 applied to parallel forces, 79 SI 



NATURAL waters, 24 



Nature, quantitative, of the re- 

 actions, 302305 



Negative and positive poles, 193,. 

 194 



Newton's first law of motion, 

 6061 



Nitrogen, 219 



Nomenclature, chemical, 270277 



Non-metals, metals and, 208, 209 



OCCURRENCE of carbonates, 311 

 313 ; of carbon dioxide, 291 



Operations, simple chemical, 207 

 216 



Oxide, lower, of carbon, 292, 293 ; 

 of hydrogen, production of, 238, 

 239 ; phosphorus, 280 



Oxides and their properties, 222,. 

 223; of sulphur, 251, 252 



Oxidising and reducing flame, 230' 



Oxygen, air compared with, 226, 

 227 ; and hydrogen, proportions 

 of, in water, 239, 240 ; phos- 

 phorus and, 279 ; preparation 

 and properties of, 220 222 



PARALLEL forces and centre of 

 gravity, 74 90 ; conditions for 



