INDEX 



363 



Leyden jar, 267 



Libra, 38 



Light: arc, 247; ^direction of propaga- 

 tion of, 281; dispersion of, 304, 306, 

 307; incandescent, 246; nature of, 

 305; reflection of, 285, 287, 291; 

 reflection, total, 295; refraction of, 

 285, 292, 306, experiment to show 

 292, laws of, 293, 294; speed of, 17, 

 travels in straight lines, 281; wave 

 theory of, 305 



Lightning, 204, 205 



"Lightning," record maker, 118 



Lignite, 73 



Lillienthal, 88, 93 



Limestone, 45, 71, 74; characteristics 

 of, 71 



Limonite, 49, 50, 61 



Lion, the, 36, 37 



Lithium, 166, 167, 170 



Locomotive, 189 



Lodestone, 199, 200 



Loom, power, 186, 188 



Luna, ii 



Luster, 49 



Lyre, 29 



Machinery, labor saving, 186, 339 



Machines, 339; law of, 340 



MacReady, J. A., 95 



Magdeburg spheres, in, 203 



Magic lantern, 301 



Magnesium, 167, 170, 172 



Magnesium chloride, 168 



Magnesium fluoride, 172 



Magnesium oxide, 172 



Magnet, 199-201, 209; electro-, 209, 



238; lines of force of, 201, 202 

 Magnetic field, 202 

 Magnetic pole, 200, 202 

 Magnetism, 199, 209 

 Magnetite, 50, 200 

 Magneto, 192, 241 

 Magnification by concave mirror, 291, 



292 



Magnifying glass, 297 

 Malachite, 50 

 Man, primitive, 130, 131 



Marble, 56, 74, 75 



Mars, 2, 7, 8, n, 13, 39; inhabitants of, 

 8; polar regions of, 8 



Match, invention of, 147 



Matter, nature of, 148, 163 



Maxim, Sir Henry, 91 



Melting-point, 172 



Mendeleeff, 168 



Mercury, the metal, 45 



Mercury, the planet, 2, 7, 8, 11, 13, 39 



Metals, 172 



Metamorphism, 74 



Meztli, 12 



Mica, 50, 58-60; characteristics of, 59, 60 



Microphone transmitter, 219, 276 



Microscope, 298, 300; construction of, 

 299; parts of, 300 



Milky Way, 17 



Mineral, 45, 47 



Minerals: accessory, 50; anhydrous, 

 58; essential, 50; hydrous, 58; 

 primary, 58; secondary, 58; table of 

 distinguishing characters, 60 



Mirror: concave, 286, 291; convex, 286, 

 290; cylindrical, 289, 291; focus of, 

 291; maze, 291; plane, 286 



"Miss America II," 119 



Mizar, 20 



Modulator, 276 



Molecular collisions, 164 



Molecule, 148, 163, 164; movements of, 

 164; size of, 163; structure of, 165; 

 temperature and the, 164 



Montgolfier brothers, 104 



Month, 12 



Moon, i, 12, 13; diameter of, 12; dis- 

 tance of , 12; light of, 12; man in, 12; 

 orbit of, 15; phases of, 12; woman in, 

 12; worship of, n 



Moons, ii 



Morse code, 214 



Morse's telegraph, 212 



Motor boat records, 119 



Motor boats, 119 



Motor car, 191 



Motor, electric, 233, 234, 237 



Muffler, 196 



Muscovite, 59 



