CHAMBERS'S INFORMATION FOR THE PEOPLE. 



Logwood, 342. 



Longitude and latitude defined, 2, 52, 461. 

 Lophius, or fishing-frog, in Zoology, 159. 

 Lophobranchii, one of Cuvier's orders of fishes, 



1 60. 



Louse, louse tribe, in Zoology, 146. 

 Loxiadae (Crossbills), in Ornithology, 174. 

 Lucifer-matches, in Applied Chemistry, 352. 

 Luminosity in vegetables, examples of, 79. 

 Lungs, or breathing apparatus of animals, 120, 



121, 774. 



Lustre (Lat. lustrum), in Chronology, 294. 

 Luxor, temples of, 467. 

 Lymphatic vessels, in Animal Physiology, 117. 



Macaroni, manufacture and dietetic uses, 739. 



Macaws, in Zoology, 173 ; as cage-birds, 672. 



MACHINERY, PRACTICAL, 219-224. 



Mackerel, in Zoology, 159 ; fishery of, 711. 



Madder, colouring-matter, 342. 



Madderworts (Rubiacea), a Jussieuian order, 99. 



Magnesia, its preparation and uses, 391 ; in 

 Medicine, 770 ; magnesium, 307 ; the metallic 

 base of magnesia, 329, 416. 



MAGNETISM AND ELECTRICITY, 257-288. 



Magnetism, magnets, magneto-electricity, 258, 

 259, 283. 



Magnetism of the earth, 259. 



Magneto-electricity, 283, 284. 



Magnoliaceae, in Botany, 90. 



Mainspring of a watch, 301. 



Maize, or Indian corn, dietetic value of, 741. 



Malachite, in Mineralogy, the green carbonate of 

 copper. Malachite is a valuable ore of copper ; 

 and from its variegated, appearance, and the 

 brilliant polish of which it is susceptible, is 

 prized by the lapidary for ornamental purposes, 

 404. 



Malacopterygii Apoda (soft-finned fishes, destitute 

 of ventral fins), one of Cuvier's orders of fishes, 

 156. 



Malacopterygii Sub-branchiata (ventral fins beneath 

 and in advance of pectoral), one of Cuvier's 

 orders of fishes, 157. 



Malic acid, 335. 



Malleability (Lat. malleus, a hammer) of matter, 

 196. 



Malpighian bodies, in Human Physiology, 122. 



Malting, 351 ; malt liquors, dietetic functions of, 

 752. 



Malvaceae, one of the natural botanical orders, 91. 



Mammalia (Lat. mamma, a teat), in Zoology, 176- 

 192. 



Mammoth, in Geology, 31 ; in Zoology, 184. 



Man, distribution of, in Physical Geography, 64. 



Man, physiologically considered, 113-128; zoo- 

 logically considered, 192. 



Mandible, the term applied to the upper jaws of 

 insects, and the lower jaws of mammals, 145. 



Manganese, in Chemistry, 329; in Metallurgy, 

 416. 



Mangel-wurzel, as an agricultural crop, 527. 



Manna, a saccharine cathartic, how procured, 102. 



Manures, theory and application of, in Agricul- 

 ture, 515 ; in Garden Management, 547. 



Marble, its uses and modes of preparation, 390 ; 

 chemical composition, 307. 



Mariner's compass, in Magnetism, 259 ; in Mari- 

 time Conveyance, 460. 



MARITIME CONVEYANCE, 449-464. 



Marjoram, nature and culture of, 556. 



814 



Marl, varieties and economical importance of, 



392 ; in Agriculture, 540. 

 Marmots (Sciuridce), 188. 

 Marrow, animal marrow, 124 ; vegetable, 559. 



Mars, the fourth of the primary planets, 7. 



Marsh gas, carburetted hydrogen, 323. 



Marsupialia (Lat. marsupium, a bag or pouch), 

 order in Zoology, 177. 



Mastic cement, composition of, 367. 



Mastication, in Human Physiology, 114. 



Mastodon (Gr. mastos, a breast, and odous, a 

 tooth), an extinct thick-skinned quadruped, 31, 

 184. 



Matches, instantaneous, or lucifers, 352. 



Matins, group of dogs, 690. 



Matrix, a mould of any kind that forms ; also used 

 in Mineralogy to denote the general mass in 

 which ores or crystals are imbedded, 401. 

 Matter, its properties, 193. 



Mauveine, colouring-matter, 340. 



Maxillary, of or belonging to the jaws, 145. 



Meals, number and times of taking, 725. 



MECHANICS AND MACHINERY, 209-224. 



MEDICINE, 769-780. 



Medulla oblongata, in Human Physiology, 123. 



Medullary (Lat medidla, marrow), an epithet 

 applied to any substance resembling marrow in 

 appearance and consistence, such as the sub- 

 stance of the brain, the pith of plants, 123, 594. 



Medusae, or jelly-fish, in Zoology, 136. 



Meerschaum, its history and uses, 395. 



Megalonyx, an extinct quadruped, discovered in 

 South America, 179. 



Megatherium, 31 ; in Zoology, 179. 



Meliphagide.(Honey-suckers), in Ornithology, 174. 



Melon, nature and culture of, 558, 591. 



Meningitis, treatment of, 777. 



Mental exercise, hygienic effects of, 729. 



Mephitic, a word designating noxious or poisonous 

 gases, 388. 



Mercury, in Chemistry, 330; in Metallurgy, 413; 

 mines of, 413. 



Mercury, nearest planet to the sun, described, 6. 



Meridians, in Astronomy, 2, 9 ; in Geography, 52. 



Merinos, a variety of fine-woolled sheep, 642. 



Meropidce (Bee-eaters), in Ornithology, 175. 



Mesentery, in Human Physiology, 116. 



Metalloids, in Chemistry, a term sometimes applied 

 to the non-metallic elements, 307. 



METALS AND METALLURGY, 401-416; specific 

 gravities, 402. 



Metals, in Chemistry, 307, 312, 313. 



Metamorphic or non-fossiliferous system, in Ge- 

 ology, 24. 



Metamorphism, in Geology, 22, 23, 63. 



Metamorphosis, in Vegetable Physiology, 80 ; in 

 Zoology, 146. 



Metastannic acid, or putty powder, 412. 



METEOROLOGY, 33-48. 



Meteors and meteoric phenomena, 48, 405. 



Methylic alcohol, 333. 



Miasma, noxious effluvia injurious to health, 721. 



Mica, in Geology, 18. 



Mica and talc, their economical uses, 395. 



Microscope (Gr. micros, small, skoped, I see), 251. 



Midge, order Neuroptera, 147. 



Milk, in Husbandry, 636 ; in Dietary, 748. 



Milky-way, in Astronomy, described, 16. 



MINERALS, 385-400. 



Minnow, a small fresh-river fish, 699; minnow 

 bait, 699. 



