Index. 
335 
Central Park Museum 51 
Cepheids 154 
Ceratodus 322 
Cere aria hyalocanda 305 
Cercopithecus, Brain of 328, 329 
Cerebellum of the Orang and Chim- 
panzee 327, 330 
Cerebral Fissures of the Domestic Cat, 
Felis domestica. Burt G. Wilder. .. . 49 
“ Cerebral Localizations ” (Broca) 93 
Cerebro-Spinal Nervous System, Plan 
of the 134 
Certain Modifications undergone by 
Glass 307 
Certain Properties of Mixtures of 
Methyl Cyanide with Common Al- 
cohol and Methylic Alcohol 88 
Challenger Expedition, The 97 
Chamaeleon, The Tongue of the 234 
Chimpanzee, Compara'ive Anatomy of 
the 302 
“ Change of Serpentine into Quartz ” 
(Rand) 332 
Characteristic Distinctions between Hu- 
man Blood and that of other Ani- 
mals 296 
‘ ' Characters of Some New Species of 
Compositas, etc.” (Gray) 79 
Chateau, fall of a, in Sicily, from Disin- 
tegration of Rocks beneath it 42 
Chemical Constituents of Stereocaulon 
Vesuvianum 331 
“ Chemical Decomposition Incited by a 
Cold Fluid Stratum Floating on a 
Warm Liquid” (Mott) 293 
Chemical Investigations in the Bohe- 
mian Central Mountains 307 
“ Chemical Philosophy ” (Cooke; 79 
Chemical Society of London 20 
Chemism, Definition of. 240 
Chemistry, Agricultural 173 
Chemistry as an Art and Chemistry as a 
Science. J. M. Ordway 149 
Chimpanzee, Brain of the 25, 326, 329 
Chinoline, Synthesis of 307 
Chlcenius diffinis 40 
Chloralummium used at Cloth Works. . 307 
Chloride Ores, The Reduction of 119 
Chlorides of Camphor, The 272 
Chloride of Platinum 12 
Chlorine, Determination of, in Potable 
Water 21 
Chlorine in Potassium Bromide, Colori- 
metric Determination of 331 
Chlorophyll, Method for the Retention 
of, in Prepared Vegetables 134 
Chocolate as a Breakfast Beverage 75 
Chonetes lepida 190 
Chromium Sesquichloride of a Persis- 
tent Green Color 260 
“ Chromite pear Radnor, Pa.,” (Rsnd). 332 
Chromo-Lithography 24 
CidandcE 143, 147 
Cidaris 145, 148 
Cider Making in England 24 
Cincinnati Observatory 1,13, 102 
Cinclus aquaticus 267 
“ Civilization, Notes on ” (Hough) 202 
Classification, The, of Science. Sam- 
uel Fleming (I) 311 
“ Classification of the Protista” (Haeckel) 176 
Clathrulina elegans 56 
Clausius, Electro-Dynamic Law of 140 
Clay, True, in so-called Clay Soils 307 
Clocks, Theory of Accidental Errors of.. 166 
Clymene, When Discovered 283 
Clypeaster 143 
Clypeasttidco 144, 147 
Coal. P. W. Sheafer (I) 88, (II) 98 
Coal Gas, Effect of the Inhalation of. . . . 31 
Coal Gas, Spectrum of 107 
Cobalt, Occurrence of 227 
Cochineal Dye 62 
Cochineal Insect, The 235 
Cochliaria 217 
Co-efficient of Expansion, by Heat, of 
Metals 84 
Co-efficient of Expansion of Gas Solu- 
tions. E. L. Nichols and A. W. 
Wheeler 135 
Coslenterata 97 
Coffee, Composition of, and Effect upon 
the Human System 75 
Coffee, Improved Method of Roasting. . 76 
Coke of Petroleum, Products Contained 
in 307 
Coleoptera Found in Wools 320 
Coleoptera, Monstrosities Observed in. 38 
Coleoptera, Organ of Smell in 320 
Colly rites 144 
Colophonium, Products of the Distilla- 
tion of 247 
Color Blindness 214 
Color Blindness, On. B. Joy Jeffries. . 197 
“ Color Glow ” 67 
Colorimetric Determination of Chlorine 
in Potassium Bromide 331 
Color, The, of Flowers 306 
Colosoma triste 38 
Comet, Discovery of a, by M. Pennule, 
[Pechiile] Dec. 16, 1880 297 
Comet E, 1880 259 
Comets, New 258, 297, 330 
Comet, The New Periodic 258 
Coming of Age of the Origin of Species 15 
“ Comparative Anatomy as a Part of 
the Medical Curriculum ” (Allen). . 112 
" Comparative Anatomy of the Cerebral 
Convolutions ” (Broca) 93 
Comparative Anatomy, Some Recent 
American Papers in 322 
Comparative Solubility of Lead Phos- 
phate and Arseniate in Dilute Acetic 
Acid 188 
Comparative Zoology 200 
Competition between the Aniline and 
Madder Dyes. A. S. Macrae 62 
Complex Acids containing Boric Acid. . 307 
Compound, A, of Titanium Tetra- 
chloride and Acetyle Chloride 188 
Compound of Titanium Tetra-chloride 
and Phosphorous Proto-chloride. . . 307 
Congress of Ophthalmologists 52 
Conoclypus 144 
Conservation of Energy. . 113, 237, 244, 263 
Conservation of Energy, Priority in the 
Discovery of the Principle of 203 
Constitution of the Salts ol Rosanaline 
and of Analogous Coloring Matters 188 
Constitution of the Naphthalines and 
their Derivatives. F. Reverdin and 
E. Notting. (Translation by M. 
Benjamin and T. TonneH) 323 
Contributions to Encephalic Anatomy. 
E. C. Spitzka (I) 73, 235, (II) 251 
Contributions to Nervous and Mental 
Pathology” (Spitzka) 233 
“Contributions to Psychiatry ” (Kier- 
nan) 235 
“Convenient Scale and Apparatus in 
Gas Analysis ” (Morley) 112 
Co-operation in Science 30 
Co-ordinates, Problems in Watson's. . .. 154 
Cope, Prof. Edward D., The Biblio- 
graphy of 211 
Copper, Diffusion and Physiological 
Condition of, in the Animal System 319 
Copper Electrified, Adhesive Power of. 84 
Copper, Occurrence of 227, 319 
Copper Plating on Zinc 96 
Cordoba Observatory 259 
Corona 136, 178 
Corpora striata, Functions of the 115 
Correlation of Forces 203, 244 
Coscinodisci 23 
Coscinodisci , quick way of Obtaining. ... 10 
Cosinodiscus gigas 222 
Cosinodiscus stelliges 222 
Cosmogony, Definition of 312 
Cottus scorpius 87, 100 
Craspedacusta ( M edusa) 34 
Crocus vemus 307 
Croton argyranthemum 264 
Cruciferas 68 
Crypto- Raphideae 23 
Crystals of Haemin 235 
Ctenophora 97 
Cumberland Island 85 
Cumberland Straits 85 
Cupriferous Series in Minnesota. N. H. 
Winchell 197 
Currents, On, Produced by Friction of 
Two Conducting Substances 119 
Cuttle Fish as Food 68 
Cyanide of Potassium, Formula for 
Making 12 
Cyanogen, Spectrum of 105 
Cybuim maculatum 241 
Cychrus angusticollis 38 
Cy clast er 146 
C ygni, a, Spectrum of 259 
Cygnns 136 
CymbellecB 23 
Cymbulia calceola 235 
Cynocephalus, Brain of. 328, 329 
Cynodictis 17 
Cyphoderia ampulla 56 
Cyphosoma 144 
Cypricardites angusta - 290 
Cypricardites Catskillensis 290 
Cyrene, When Discovered 283, 305, 318 
Danburite 96 
Daniell Pile 92 
D'Arrest’s Comet, Period of 258 
Darwinian Study, A. Alfred R. Wal- 
lace 32 
Davenport Academy of Natural Sciences 19 
Davis Straits 85 
Dearborn Observa'ory 90, 165, 318 
Decomposition of Simple Organic Com- 
pounds by Zinc Dust 272 
Deep Sea Soundings, and the Relation 
of Microscopic Algae to Deep Sea 
Animal Life. H. L. Smith 161 
Deficiencies, on the, of Meteorological 
Work in Data of Value to Agricul- 
ture, and Means for supplying 
them. William McMuttrie 167 
Deflection of a Constant Current of 
Electricity by a Magnet 164 
Deforming Pilosity 318 
Degeneration. Alfrel Wallace 63 
Demonstration of Capillary Circulation 
in Man. D. C. Hawxhurst 162 
Department of Agriculture 78 
Depraved Taste in Animals 120 
Descartes, Essay on, by Daubrde 31 
“ Description of a New Crustacean, 
from the Upper Silurian of Georgia, 
with Remarks upon Calymene Clin- 
toni " (Vogdes) 332 
“ Desciiption of a New Species of Cat- 
ostomus (Catostomus Cypho) from the 
Colorado River ” (Lockington) 332 
“ Description of a new Species of Hemi- 
tripterus from Alaska,” (Lockington) 332 
“Description of New Substituted Acry- 
lic Acids,” (Mabery) 112 
“ Description of a Partula, supposed to 
be New, from the Island of Morea” 
(Hartman) 332 
Description of Some Monstrosities ob- 
served in North American Coleop- 
tera, Horace F. Jayne 38 
Desilverization of Lead by the Zinc 
Process, J. E. Stoddart 316 
Desmosticha 144, 145, 146, 147 
Desprez Electro-Motor, The 92, 170 
Detection of Honey Sophisticated with 
Starch Sugar 331 
Detection of Picric Acid in Beer 296 
Determination of the Comparative Di- 
mensions of Ultimate Molecules; 
and Deductions of the Specific 
Properties of Substances. W. N. 
Norton . .m, 139 
“Determination of the Routine Time 
of Jupiter, from Variations of the 
Red Spot in 1879-80, with the Phy- 
sical Character and Changes of the 
Spot.” (Pritchett) in 
Determination of the Value of one Rev- 
olution of a Micrometer Screw 282 
Determination of Urea by Sodium Hy- 
pobromite 188 
Deutzia 265 
Development by Pressure of Polar Elec- 
tricity in Hemihedral Crystals with 
Inclined Surfaces 188 
DeVico's Comet 258 
Deville Furnace, The 315 
Devonian Insects, The, of New Bruns- 
wick 292 
Dew, Amount of Deposit of, During a 
year 71 
