INDEX. 
529 
Machinery eor Puddling Iron 113 
Magic Lantern, the 90 
,, Photographs 385 
Magnesium Lamp, New 519 
,, Light, Substitute for 261 
,, Novel Application of 377 
Magnetic Needle, Dip of the .... 130 
„ Oxide of Iron 386 
Malta, Geological History of .... 366 
Maltese Bone Caves 104 
Mammalia, Episternal Apparatus 
of 135 
Mammoth, Kelic of the 238 
Man, the Age of 240 
Manganese Ore, a 121 
Manure, Liquid 223 
Marble, Green, of Connemara. ... 107 
Meat, Extract of 109 
Mechanical Science. . 112, 241, 369, 502 
Medical Science .. 108,242,371, 504 
Mediterranean, Composition of the 364 
Mercury, Heat-conductibility of . . 517 
Metallurgical Furnaces 376 
Metallurgy 120, 251, 376, 508 
Meteoric Stones 518 
Meteorites, Constitution of 247 
Meteorological Character of January 247 
,, Commission, the .. 379 
Microscope for the Pocket 250 
,, Spectrum 66 
Microscopic Anatomy of the 
Hydrozoa 134 
,, Objects, Exhibition of 511 
,, Plants the Cause of 
Ague 371 
Microscopy 115, 249, 381, 510 
Milk and its Adulteration. By 
A. Y oelcker 177 
Mind and Force. By C. Bray . . 477 
Mine of Cinnabar 123 
Mine-gas, Percentage of 120 
Mineral Oil, American 122 
„ Waters of Yals 373 
Mineralogy 120, 251, 376, 508 
Minerals, Cornish, New 122 
,, of Lake Superior 253 
Mines, Air in. 129 
,, in Spain, Old Roman .... 509 
Moa’s Egg, the 133 
Modern Chemistry. By A. W. 
Hofmann 86 
Mollusks, Glycogen in the Tissues 
of 362 
,, of Great Britain, the. 
By R. Tate 213 
Mont Cenis Tunnel 252 
Montpelier Spring at Harrogate. . 496 
Moths, Female 134 
Mount Sinai, Geology of 499 
Mud, Combustible 106 
Muscles, Nerves in the. ... 3 .... . 506 
Muscular Fibre, Development of. . 1 08 
„ Force 504 
,, Force of Insects 133 
Mushrooms, Poisonous Principle of 374 
Mutton Tallow, Composition of . . 363 
Myrrhis Odorata, Roots of 490 
Narceine, Physiological Action of 376 
National Portrait Galleries 256 
Natural History, Contributions to 88 
,, review, the .... 264 
Natural Philosophy, Handbook of 353 
Negative Slip 370 
Nematoid Worms, Metamorphoses 
of 523 
Nerium Oleander, Poison of .... 243 
Nerve-force, Rapidity of 372 
Net for the Capture of Oceanic 
Animals 522 
New Cells for Mounting Objects. . 381 
Newspaper Geology 238 
New York, Erosion of Country 
Round. 368 
Nickel from Cobalt, to Separate 233 
Nitrate of Silver Bath 385 
,, in Micro- 
scopy 372 
Nitrous Acid formed from Am- 
monia 99 
Nobert’s Test-plates 250 
Non-recoil Gun, 370 
North-eastern Photographic Exhi- 
bition 125 
Objectives, Improvements in . . 382 
(Edogonium, Development of .... 492 
Oil-well, New 378 
Okenite 122 
Ooze from the Bottom of the 
Atlantic 132 
Opaltypes 384 
Opaque Objects, Illumination of 115, 249 
Orchid-tea 492 
Organic Analysis, Lime for 100 
Ostracoda, Metamorphosis of the 265 
Otto of Roses, Howto Test 101 
Our Domestic Fireplaces. By F. 
Edwards 222 
Owen’s Anatomy of Vertebrates. . 345 
Oxide of Cadmium and Potash, 
Compound of 495 
Oxidizing Action of Air on Coal. . 326 
Oxygen, Cheap Mode of Producing 101 
,, in Air, Proportion of . . 235 
,, New Mode of Preparing 362 
Oysters, Disease Among 391 
Ozone, by Whom Discovered ? .. . 233 
,, Density of. 233 
,, in Relation to Health and 
Disease 29 
f„ in the Atmosphere 99 
