338 
Index. 
Insects, Injurious, Two New Methods 
of Fighting 212 
Instantaneous Photography, en Ballon. 
Paul Demarets 94 
Instinct, Animal, in Its relations to the 
Mind of Man 267, 280 
Instrumental Substitute for Singing in 
Birds 24 
Intensity of Certain Phenomena ofA - 
mospheric Electricity Observed in 
the North of the Sahara 271 
International Congress of Anthropology 
and Prehistoric Archaeology 77 
International Copyright 201 
Intimate Structure, On the, of Certain 
Mineral Veins. Benjamin Silliman. 289 
" Introduction to Cryptogamous Bot- 
any," (Farlow) 79 
" Introduction to the Study of the Mor- 
tuary Customs among the North 
Am. Indians,” (Yarrow) 176 
“Introduction to the Study of Sign 
Language Among the North Am. 
Indians," (Mallery) 176 
Investigation, An, of the Vibrations 
of Plates Vibrated at the Centre. 
Thomas R. Baker 198 
Io, When Discovered 305 
Iodide of Potassium, Preparation of, by 
Liebig's Method 248 
Iodine, Preparation of Ashes of Sea 
Weed, for the Extraction of 307 
Iowa Academy of Sciences 308 
Irish Bog Butter, Analysis of 12 
Iron, Electrified, Adhesive Power of.. 84 
Iron, Influence of Magnetization on the 
Tenacity of 63 
“ Iron Mines of Ore Hill, Conn., and 
Vicinity, and the Making of Pig 
Iron,” (Stearns) 112 
Iron Ores, The, of the Brandon Period. 
Henry Carvill Lewis 164 
Iroquois, The Languages of the 137 
Island of Montreal, The. William Boyd. 242 
Island of Reil in the Brain of the Orang 
and Chimpanzee 327, 329 
Isthmia enervis 222 
Isuropis dekayi 236 
Jablochkoffs Candles 101 
Jelly-Fish, On A New, of the Order 
Trachomedusas, living in Fresh 
Water. E. Ray Lankester 34 
Johns Hopkins University, Fellowships 
at the 29 
“Joule’s Formula 103 
“ Journal de Pharmacie ” 36 
“ Journal fur Praktische Chemie”.... 47 
Juewa, When Discovered 283 
Jupiter, Diameters of the Four Satellites 
o f 165 
Jupiter: Motion of Spots on his Sur- 
face. E. E. Barnard 293 
Jupiter, Observation of. 165, 189, 236, 
259, 263 
Jupiter, Photograph of 96 
Jupiter's Satellites, Naked Eye Observa- 
tion of one of 295 
Jupiter, Spectrum of 259 
Jupiter's Spectrum, On a Photograph of, 
Showing Evidence of Intrinsic 
Light from that Planet 83 
Jupiter, the White Spot on 294 
Karnes, The, or Eskars of Maine. 
George H. Stone 112, 151 
Kikkerton Islands 86 
Knowledge, Definition of 312 
44 Laboratory Manual.” (Wilder and 
Gage) 319, 330 
“ Laboratory Notes in Microscopy." 
(Gage) 319 
Lactose, Amount of, in Milk 12 
Lcclaps gal/ieus 322 
Laganida 144 
Laganum 145 
Lagopus ior 
Laguncula piscatoris 161 
“ La Lumiere Electrique " 36, 45 
Lamellaria pellucida 235 
Lamellibranchs, The 63 
Lamna punctata (or spallanvanii) 236 
Lamps, the Electric, of M. Tchikoleff. . 45 
Lampyrus noctiluca 222 
Land Forming on our Globe, The Law 
of IS 5 
Land Snails, On the, of the Palaeozoic 
Period. . 1 . W. Dawson 136 
Languages, The, of the Iroquois. Mrs. 
E. A. Smith 137 
Language, The Zoque 19 
Larrea Mexicana 69 
Lams glaucus 215 
Law According to which the Metals and 
their Ores come to, or near to, the 
Surface of the Earth. Richard Owen. 226 
Law, Definition of a 309, 313 
“ Law of Listing ” 96 
Law, The, of Land Forming on our 
Globe. Richard Owen 112, 155 
Lead, Desilverization of, by the Zinc 
Process 316 
Lead, Electrified, Adhesive Power of. . . 84 
Lead, Occurrence of 228 
“ Lecture Experiments for the Direct 
Determination of The Velocity of 
Sound." (Anthony) hi 
Lecture Photophone 304 
Ledum palustre 101 
“Legal Rights of Children." (Gov't 
Doc.) 152 
Leguminosa 68 
Lehman's Caloric Engine, Cost of, per 
Hour 84 
Leibnitz, a Bronze Statue of, at Leip- 
. zig 7 
Leiorhynchus quadricostatus 190 
Leonids, the November, 1880 294 
Lepetella tubecola 235 
Lepidoptera, Organ of Smell in the. . . . 320 
Lepidosteu 317 
Leporis, (3 152 
Leptomedusce 45 
Lepus glacialis 216 
Lernceocera 63 
Lemceocera tortua 160 
“ Le Spectre Normal du Soleil." (Ang- 
strom) 27 
Lesser Spotted Woodpecker, The 24 
Lichnanthe vulpina 40 
Lick Observatory, The 122, 152, 158 
Life Preserver, Chemical. (Brown).... 60 
Life Question, Some Modern Aspects 
of The 112 
Light, Nature of 184 
Light, Note on the Zodiacal 180 
Light, on the Effects of Mixing White, 
with Colored 81 
Light, The Edison 18 
Light, The Velocity of 262 
Ligustrum lucidum 169 
Liliu?n Martagon 318 
Lime, Function of, in the Life of Plants 307 
Limnocodium Victoria, A Hydroid Medu- 
sa of Fresh water. George J. All- 
man 44 
Lingula concentrica 190 
Lingula spatulata 190 
Lingula, The Japanese 151 
Linnasan Society, The 44 
Liquids, The Superficial Viscidity of. . . 298 
Liver, The Glycogenic Function of the. 93 
Locatelli Lamp, Temperature of the 
Flame of the 24 
Locomotives, The Evolution of, in 
America 35 
Longicorn Beetles, a List of 222 
Loripes lens 235 
“ Los Cerillos, New Mexico, An Area 
of Recent Eruptive Rocks with Min- 
eral Veins.” (Silliman) 112 
Lovenella Whiteavesii 235 
Lubricating Oils, Friction of 155 
Luida elegans 235 
Lycopodiacea s 17 
Lyrce , a, Spectrum of 259 
M acacus, Brain of. ...• 328, 329 
Mackerel, The Spanish, Its Artificial 
Propagation 241 
Madder Dyes, Aniline and 62 
Magilus antiquus 196 
Magnetic Apparatus, The, of M. 
Edard 307 
Magnetic Disturbances 173 
“ Magnetite Markings in Muscovite.” 
(Lewis) 332 
Magnetization, Influence of, on the Te- 
nacity of Iron 63 
Magnet, The, in Medicine. P. Richet 
(Translated by Thos. B. Columbia) 59 
Manganese Hydrate, on some Causes 
which Hinder or Facilitate the Pre- 
cipitation of, by Ammonia 296 
Manganese, Occurrence of 227 
Man of the Caves, The. W. Boyd 
Dawkins 286 
“ Manual of Blowpipe Analysis. "(Ross) 237 
“ Manual of Hydraulic Mining for the 
use of the Practical Miner.” (Van 
Wagenen) 140 
“ Manual of the Alkali Trade, Including 
the Manufacture of Sulphuric Acid, 
Sodium Sulphate and Bleaching 
Powder." (Lomas) 72 
“Manual of the Vertebrates of the 
Northern United States," (Jordan). 272 
Manufacture of Factitious Butter in the 
Llnited States 196 
Manufaclure of Phosphoric Acid 307 
Margarita lamellosa 235 
Margarita regalis 235 
Marine Medusae 64 
Marriage Among the Esquimaux 87 
Mars 189, 263 
Mars, Spectrum of 259 
Marsh and Water Plants, Respirative 
Power of 12 
“ Mathematical Tables.” (Peirce) 79 
Mathesis, Definition of 312 
Matter, a Fourih State of 32, 33, 58 
Matter, a “ Mode of Motion,” 34 
Maxillary Suspensorium, The, of the 
Bee 136 
Maxima and Minima Tide- Predicting 
Machine. William Ferrel ill, 166 
Maximilian Collection of Birds, The... 223 
Mean Ratio, The, of Oxygen to Nitro- 
gen in the Atmosphere. E. W. 
Morley 166 
Measurement, On the, of Radiant Ener- 
gy. S. P. Langley 288 
Medicine, Schools of, in the United 
States 292 
Medicine, The Magnet in 59 
Medium Power Objectives, Relation of, 
to Micro-Biology 160 
Medusa 44 
Medusa craspedotce 34 
Medusae, Marine 64 
Medusas, Fresh Water, Physiology 
of the 64 
Medusae, Naked Eyed 64, 65 
Mellita 14S 
M elonitidcs 147 
Melosirea 23 
“ Menaccanite and Talc from Mary- 
land.” (Jefferis) 332 
“ Meningo-Cephalitis.” (Bannister)... 235 
“ Menobranchus lateralis." (Hoy).... 112 
Mercury 263 
Mercurial Thermometers, Rise of the 
Zero-point in 188 
Merganser, The Red-breasted 267 
M ergus Serrator 267 
Merope . . . 9 
Mersey, Sub-Railway under the 36 
Mesopithecus 303 
Metallotherapy 59 
Metals, Co-efficient of Expansion of, by 
Heat 84 
Metals, Electrified, Adhesion of the Sur- 
faces of 84 
Meteor, A Remarkable 22, 191 
Meteorite, The “ Emmett County,” 
1879 9. 9 2 
Meteorological Work, On the De- 
ficiencies of, in Data of ValuetoAg- 
riculture, and Means for Supplying 
Them 167 
