INDEX. 
385 
Gases, Spectra of, Harmonic Ra- 
tios in the 
Geological Record for 1877 
Geology 86,176,275, 
,, Bohemian 
,, Field 
, , of the London District 
,, Opinions of Voltaire and 
Laplace regarding 
„ Popular 
Glass, Toughened 
Glutton, Fossil, in Britain 
Glycerine Barometer 
Granite, Concretions and Inclu- 
sions in 
Great Southern Comet, 1880 
Greene, Prof. J. Reay, on Chamas- 
leons 
Guthrie’s ‘Magnetism and Elec- 
tricity ’ 
Hall’s Discovery of a New Action 
of Magnetism on Electric Cur- 
rents 
Halogens, Vapour Density of the 
Hardening and Tempering of Steel 
Harmonic Ratios in the Spectra of 
Gases 
Heat 
,, Influence of, on Tuning-forks 
,, Rays, dark, dispersion of ... 
Heath’s ‘ Sylvan Spring ’ 
Hedyphane containing Baryta 
from Laanghan 
Henslow’s ‘ Botany for Children ’ 
Herrengrundite, a new Basic Cop- 
per Sulphate 
Hincks’ ‘ British Marine Polyzoa ’ 
Holmium 
Human Wrist, an extra Bone in 
the 
Hutton’s ‘ New Zealand Zoology ’ 
Huxley’s ‘ Crayfish ’ 
Hylonomus 
Industries of India 
Inflammable Gas in Mines, Ndw 
Instrument for the detection of 
Infusoria as Parasites 
Intellect in Animals 
Iron, Passivity of 
„ Wires, soft, effects of stress 
on 
Judd, Prof, on the Classification 
of the Tertiary Deposits 
Jupiter 
„ Observations of 
,, Occultation of a Star by 
Kent, W. S., on Infusoria as Para- 
sites 
PAGE 
Krause’s ‘ Erasmus Darwin ’ 69 
Laplace’s opiu ions regarding Geo- 
logy 310 
Law of Association in the Animal 
Kingdom 30 
Ley’s ‘ Aids to the Study and Fore- 
cast of Weather ’ 348 
Lights for Lighthouses 191 
Light, New Standard of 192 
,, Velocity of, experimental de- 
termination of the 94 
Lindsay’s ‘ Mind in the Lower 
Animals ’ 162 
Lowe’s ‘ Coming Drought, or the 
Cycle of the Seasons ’ 348 
McAlpine’s ‘ Biological Atlas ’ ... 160 
MacLean’s ‘ Mound-builders ’ ... 257 
Magnet, New action of the, on 
Electric Currents 281 
Magnetism, Guthrie’s 345 
Magneto-Optic properties of Gases 373 
Magnets, Cast-iron 185 
,, Steel, Action of hollow, 
as compared with solid 379 
Mammalia, Mesozoic 369 
Man, Early, in Britain 254 
Manganese Bioxide, Artificial pro- 
duction of 172 
Marine Polyzoa, British 156 
Markham’s ‘ Great Frozen Sea, a 
personal Narrative of the Voy- 
age of the Alert during the 
Arctic Expedition of 1875-76’... 73 
Mariotte’s Law, Variations from... 288 
Mars 78, 362 
,, Figure of 361 
,, Satellites of 82 
, , Solar Parallax from Meridian 
Observations on 80 
Mathematics, pure and applied ... 341 
Measurements by Thomson’s Gal- 
vanometers 184 
,, in Electro- optics ... 189 
Medusa, Freshwater 291 
Mercury, Coloured Rings on the 
surface of 192 
,, Recognition of 366 
Mesozoic Mammalia 369 
Messer’s ‘ British Wild Flowers ’ 341 
Metalliferous Minerals and Mining 66 
Metamorphism of Rocks 230 
Meteorite, Emmet County 277 
Meteorology 348 
Meteors and Meteor Systems 13 
„ August 322 
,, November 81 
Milne, J., on a large Crater in 
Japan 336 
Mineralogy 91, 182, 277, 370 
Minerals, Rambles in search of ... 344 
PAGE 
94 
261 
, 368 
277 
166 
265 
310 
165 
288 
276 
190 
89 
271 
97 
344 
282 
275 
248 
94 
340 
288 
93 
264 
182 
161 
183 
156 
83 
358 
261 
159 
89 
343 
375 
293 
162 
367 
375 
122 
362 
81 
167 
293 
