Index. 
337 
Fish as Food 102 
Fishes, New Method of Mounting the 
Skins of 235 
Fishes, Swimming Bladders of 36 
Fish, On the Nutritive Value of 233 
Fissures, Cerebral, of the Domestic Cat, 
Fells domestica 49 
Flames, Temperature of 24 
Flight of Birds, Theory of the 23 
Floating Movement of Birds in the Air. 23 
Floral Parts, Reversion in 310 
“ Flora of North America,” (Gray) 79 
Flowers, The Color of 306 
Fluid Mounts, Use of Wax Cells in 
Connection with White Zinc Ce- 
ment for 161 
" Fly Trap,” The : Its First Discovery. 21 
Food, New Sources of. W. N. Locking- 
ton 68 
Food of the Esquimaux 87, 100, 101 
Foramen of Monro 200 
Fossil Butterflies 44 
“ Fossil (?) Casts in Sandstone,” (Car- 
deza) 332 
“ Fossil Dinocerata in the E. M. Mus- 
eum at Princeton, N. J.,” (Hill) 112 
Fossil Horse, Discovery of the Remains 
of a 153 
Fossil Insects and Plants on Mazcn 
Creek, Preservation of 163 
Fothergill Gold Medal of the Society of 
Arts 25 
“ Four Lectures on Static Electric In- 
duction,” (Gordon) 320 
“ Fourteen Weeks in Physics,” (Steele) 212 
Fourth Form ofMatter, The, Henry Ray- 
mond Rogers 200 
Fourth State of Matter, A 32 
Fourth State of Matter. Duke of Argyll. 33 
Fourth State of Matter: A Refutation; 
J. Puluj. (Translated by Gustave 
Glaser) 58 
“ Fresh Water Rhizopods of North 
America,” (Leidy) 54 
“ Fresh Water Sponges of Fairmount 
Park,” (Potts) 332 
Friction of Lubricating Oils. C. J. H. 
Friederich Mohr’s Life and Works. 
George W. Rachel 242 
“Frog Spawn” 12 
Frustulia saxonica 284 
Fucus digitatus 307 
Fucus vesiculosus 87, 216 
“ Functions of the Epiglottis in Deglu- 
tition and Phonation ” (Walton)... 81 
Fungus Growing upon Glass 10 
Fungous Deposit in Acid. Phosphoric. 
Dil 10 
“FurFerrol.” (Hill) 79 
Furgusonite, New Locality of 120 
Further Notes on the Pollination of 
Yucca, and on Pronuba and Ptodoxus. 
C. V. Riley 112, 136 
Q^alecynus 303 
Galeropygus 144 
“ Garnet Mistaken for Corundum." 
(Cardeza) 332 
Gases, Dilatation and Compressibility 
of, under Strong Pressures 247 
Gases, Measurement of the Heat of 
Combustion of 120 
“ Gas Flame,” Temperature of 24 
Gas Illumination, Historical Notes on. . 275 
Gas Solutions, On the Co-efficient of 
Expansion of 135 
Gastric Juice, Effect of, on Ptyaline and 
Diastase 12 
Gaugain, M. J., Death of 31 
Genesee Slate 190 
Genesis, The, of Certain Iron Ores. T. 
Sterry Hunt 209 
Geneva Observatory 263 j 
Genista aspalathoides 318 
Genista lobelii 318 
Geological and Geographical Distribu- 
tion of the Human Race 19 
Geological Phenomena, The Recur- 
rence of Certain, in Geological 
Time 172 
Geological Phenomenon in Sicily 42 
“ Geology of Eastern Massachusetts,” 
(Crosby) 6 
Georgetown Observatory 1 
Get ephemera 292 
German Association for the Advance- 
ment of Science 109 
Glacial Epoch, The 172 
Glass, Certain Modifications Under- 
gone by 307 
Glass, Observations on Silvering 19 
Glass, Simple Method of Perforating 
by the Electric Spark 11 
Glass, The Action of Sunlight on 180 
Glass, Variation in the Co-efficient of 
Expansion of 247 
Gold, Electrified, Adhesive Power of. . . 84 
Gold, Occurrence of 227 
Gomphonema 222 
Gomphonemece 23 
Goniocidaris 143, 143 
Gordonia lasianthus 21 
Gorilla, Brain of the 326, 330 
Gorilla, Comparative Anatomy of the.. 302 
Graminees 68 
Gramme Dynamo-Machine. .. .92. 170, 172 
Gramme's Magneto-Electric Machine. 103 
Grass, Nutritive Value of, in Various 
Stages of Growth 12 
Gravitating Trap, Sigsbee's 314 
Gravity, Acceleration due to the Force of 96 
Greenwich Observatory 295 
“ Griffin's Chart of Animal Classifica- 
tion ” (Griffin) 296 
Griffith Club of Microscopy 70, 160 
Griffith Award, The, to C. M.Vorce.. 163 
11 Gross Anatomy of the Brain of the 
Domestic Cat.” (Wilder) 49 
“Growth, as a Function of Cells.” 
(Minot) 81 
Gymnospermece 17 
Gymnotus electricus 5 
Gyri of the Cerebral Surface 25 
Hsetnin, Crystals of 235 
Halley's Comet 258 
Halo, Solar, A Perfect 19 
“ Handbook of Systematic Urinary 
Analysis, Chemical and Microscop- 
ical,” (Deems) 332 
Hartwig's Comet 214, 283 
Hartwig's Comet, The Spectrum of. . . . 283 
Harvard College Observatory, 1, 90, 
136, 263, 294 
Harvard University, Original Work at. 79 
Heat, Definition and Nature of 184, 238 
“ Heat Produced by Magnetizing and 
Demagnetizing Iron and Steel,” 
(Trowbridge) in 
Hecate, When Discovered 283 
Hegar's Formula (Preservative Fluid). . 233 
Helena, When Discovered 283 
Heliamphora 266 
Heliograph, The, for Military Purposes. 22 
Heliopelta 222 
Helops sulcipennis 41 
Hemiaster 144, 145, 146, 147 
H emicidaridcB 147 
Hemicidaris 143 
Henry, Joseph, Eulogy on. A. M. 
Mayer 127 
Hepatica triloba 7 
Hera, When Discovered 283 
Herbarium of Col. Stephen T. Olney. . . 306 
Hercules 331 
Herschel, Sir William, Life and Works 
of 33 i 
Heterocentrotus 143 
Heteroteuthis tenera 235 
“ Highest Magnifying Powers, "(Moore) 176 
Hipparion 153 
Hippocampus 253 
Hipponoe. 145 
“ Historia AnimaUum,” (Aristotle) 10 
Historical Notes on Gas Illumination. . . 275 
Hock’s Motor, Cost of per hour 84 
Hogarth Sound 85 
Hogg, Dr. Jabez, on Bacillaria paradoxa 7 
Holaster 146, 148 
Holectypus 144 
Holoptychius 290 
Homolampus 144 
Homothetus 292 
Hormione, When Discovered 283 
Horological Laboratory of Yale College 36 
Horse, Fossil, Discovery of The Remains 
of a 153 
Howgate Polar Expedition 85, 100, 214 
Hudson's Straits, Eskimo of 215 
Human Blood Corpuscles, Possibilily of 
Identifying 10 
Human Race, Geological and Geograph- 
ical Distribution of the 19 
Hyboclypus 144 
“ Hybridization of Lilies,” (Parkman).. 81 
Hydromedusce 34 
Hygiene Convention and Exhibition. . 214 
Hylobates, Brain of 327 
Hylogeny, Definition of 312 
Hylomyzon 254 
Hymenoptera, Organ of Smell in 320 
Hypochlorine, and the Conditions of its 
Origin in Plants 272 
|chlhyophagy 7 
Ichthyopsida, (of Huxley) 231 
Ichthyopsidian Brain, The Objects and 
Methods of a Study of the 251 
Ichthyosaurus 200, 322 
let icy on 303 
Ipuana, Brain and Spinal Cord of the. . 73 
Illicium floridanum 21 
“ Importance, as Plant Food, of the 
Nitrogen in Vegetable Mould,” 
(Storer) 81 
Improved Electro-Motor, An, Theo- 
dore Wiesendanger 170 
Improved Method, An, of Operating the 
Sprengel Air-Pump. Ogden N. 
Rood 291 
Improved Microscope Stage 293 
Improved Microtome, An. Willard 
Hailes 187 
Improved Thermo-Electric Apparatus. 
R. H. Ridout 8 
“ Improved Vertical Clamp for the Tel- 
escopes of the Theodolites and Mer- 
idian Instruments,” (Davidson).... 272 
Improvement, An, in a Microscope 
Stage. Carl Seiler 162 
Improvement of the Mississippi River. 
W. H. Ballou 232 
Incandescent Lamp u 
“ Incomplete Adaptation as Illustrated 
by the History of Sex in Plants,” 
(Ward) 112 
Inconveniences, from a Physiological 
Point of View, of The Substitu- 
tion of Amylic Alcohol for Ether 
in Stas's Process for the Detection 
of Morphine 224 
“ Incrustations formed in Pipes used 
in Gas Wells,” (Nason).... 112 
Indian Bread, or Tuckahoe, 12, 60, 72, 262 
Indian Census, The 175 
Indian Corn, Fermented, A Poisonous 
Product of 235 
Indigo Dyes 62 
Infanticide Among the Esquimaux.... 86 
Infection from Mosquitos ij 
Influence of Temperature on the Distri- 
bution of Salts in their Solutions... 188 
Influence of the Galvanic Current on 
Bacteria 224 
Infusoria Found in Fresh Pond, Cam- 
bridge 1x2, 212 
“Inquiries Concerning the Influence of 
Light on the Propagation of Sound” 
(Parolette) .'... 287 
Insects as Food 68 
Insects, Fossil, on Mazon Creek, Pres- 
ervation of 163 
Insects, Organ of Smell in 320 
Insects, The Devonian, of New Bruns- 
wick : 292 
