33& 



Index. 



Diadematidcr 143, 147 



Diademopsidie 14b 



Diamonds, Artificial 12 



Diapharta ( Ulriculus) gemma 235 



Diaphote, The 14 



Diastase, Action of 12 



Diatomaceoe, Quick Way of Securing. 10 



Diatomaceoe vs. Desmidiacere 7 



Diatomaceous Earth, The Richmond.. 222 



Diatoms, Belgian, A Synopsis of 23 



Dicyemida 97 



Didymoprnim 56 



" Differential Calculus " (Byerly) 79 



Diffiugid constricta 56 



Difflitgia corona 56 



Difflugia lobostoma 56 



Diffiugid piriformis 56 



Diffraction, Simple Method of Observ- 

 ing 319 



Diffusion, The, and the Physiological 

 Condition of Copper in the Human 



System 319 



Digestion, Nature of 114 



Dilatation and Compressibility of Gases 



under Strong Piessure 247 



" Dimensions ot the Brain and Spinal 

 Cord in Some Extinct Reptiles " 



(Marsh) 288 



"Dimorphic Flowers in Houstoma " 



I Meehan) 332 



Dinamaba mirabilis 56 



Dionua muscipula 21 



Dione, When Discovered 283 



Diplocidaris 143 



Diplophrys Archeri 56 



Diptera, Organ of Small in 320 



Discina lodeusis 190 



Discina truncata 190 



Discoidea 144 



''Discoveries in the Mammoth, Wyan- 

 dot, and Luray Caves," (Hovey). . . 112 



Discoveries Near Este, Italy 6 



" Discussion of the Phenomena, observ- 

 ed in Comparing the Spectrum of 

 the Light from the Limbs with that 

 of the Centre of the Solar Disk," 



(Hastings) in 



" Diseases Caused by Fungi," (Farlow) 81 

 " Distinguishing Species of Populns 

 and Juglans by the Young Naked 



Branches," (Beal) 112 



Distribution of the Human Race, Geo- 

 logical and Geographical 19 



Distribution, The, of Time. Leonard 



Waldo 277 



"D-hnes" Spectra; Are thev Due to 



Water? W.A.Ross....' 48 



Doris complanata 235 



Dorocidaris 145 



Do Sharks Swallow their Young? Burt 



G. Wilder 236 



Double Stars, Observation of 165 



Dredging Cruise, Report of the, of the 

 U. S. Steamer, Blake, During the 



Summer of 1880 314 



Dreyer's Astronomical Record 77 



Drosera Ion gi folia 264, 265 



Drosophvll 1011 265 



Dry "Mounts" for the Microscope, 



H. L. Smith (I; 2 6, (II) 74 



Dry Mounts, Method of Preparing 264 



Dualistic Realism 312 



Duration, The, of the Arctic Winter. f. 



Schwatka 314 



Dyes, Aniline and Madder 62 



Dynamo-Electric Current, and on Cer- 

 tain Means to I mprove us Steadiness 22 



Dynamo-Machines 170 



ridct 145 



Dyschirius globulosus 40 



Earth's Figure, Secular Changes in the. 83 



1 d ctive Action of, on the Moon 247 



Earthquakes and Volcanic Phenomena, 19 



Earthquakes, Annual Stati 'ies of 19 



-1 Electric* 



108 



Eccentricity of the Earth's Orbit 96 



Bthincmthida 144, 147 



Echinanthus 145 



Echinarachnius 145 



Echini 147, 148 



Echimdee 147 



Echini, Extinct 142 



Echinobrissus 146, 148 



Echinocardium 145 



Echinoconida 144, 147 



Echinocyamus 144, 145 



Echinodermata 97 



Echinolampus 145 



Echinometra 145 



Echinometradm 143, 147 



EchinoneidiC 144 



Kchinoneus 145 



Echinothurice 144, 147 



Echinus 14s 



Edison Light, The 18 



Edison's Electro Dynamo-Machine.... 102 



Edison's Laboratory 101 



Edison's Telephone 11 



Eels, Eggs of 10 



Effect of Age on the Quality of Iron. . 224 

 " Effects of Certain Drugs in Increasing 



or Diminishing Red Blood Corpus- 

 cles," (Cutter) 81 



" Effects of the Respiratory movements 



on the Pulmonary Circulation" 



(Bowditch) 81 



Effect, upon Crops, of Carbonic Acid 



Gas in the Air 12 



Eggs of Eels 10 



Eggs of the Extinct Great Auk 69 



" Elasmobranch Fishes " (Foster) 97 



Elect ra 9 



Electrical Blowpipe of M. Jamin 328 



" Electrical Conductibility of Gases," 



(Hittorf) 58 



Electrical Expansion, Laws of 120 



Electtical Furnace, Dr. Siemens' 315 



Electrical Indicator, for Steam Boilers. 96 



Electrical Insects 5 



Electtical Railroads 5 



Electric Illumination 153 



Electricity, Atmospheric 91 



Electricity as Power. Francis R.Upton.. 5 



Electricity, Origin of 1:3 



Electricity, Polar, Development of, by 



Pressure, in Hemihedral Crystals, . . 188 

 Electricity, Polar, in the Hemihedral 



Crystals with Inclined Surfaces. . . 260 

 Electricity, The Earth as a Conductor 



of 108 



Electricity, Transmission of Motion by. 11 



Electricity, Water .lets as a Source of. 84 



Electric Lamp, Edison's 277 



Electric Lamp, New Form of, (Charles 



Stewart) 11 



Electric Lamp of Foucault and Serrin. 45 



Elec ric Lamp of Mr. Swan 36 



Electric Lamp (Reynier) 91 



Electric Lamps of Lontin and Siemens. 45 



Electric Lamps of M. Tchikoleff 45 



Electric Light, Crucial Test of the, in 



London 51 



Electric Lighting, Personal Danger 



Connected with 314 



"Electric Light; Its Production and 



Use" (Urquhart) 72 



Electric Motors, their Durability and 



Actual Return in Work 102 



Electric Phenomenon, A Curious 72 



Electric Pile, A New, (Reynier) 84, 91 



, Adhesion of the Sin- 



of 84 



Electro-Dynamics, (Law of Clausiut 



Electro-Magnetic Rock 1 > r i 1 1 . • 320 



Electro Motive force of the Brush Dy- 

 namo-Electric Machine. Henry 



Morton 304 



Improved 170 



Electro-Motors: Their Power and Re- 

 turn. J. Hospitalier 103 



" Elementary Plane and Spherical Geo- 

 metry " ( Wheeler) 77 



" Elements ol Embryolog) " (Balfour). 97 



Eleodes pilosa 41 



Elephant Calf, Mo le of Suckling of the. 10 



Elephant, Young Indian 



Elephas primigtmus 202 



Education ol Young Astronomei • . .82, 102 



Embryological Development 142 



" Embi 1 Salmonides" (Vogt) 14^ 



Embryology 97 



Emmet County Meteorite, 1879. J. Law- 

 rence Smith 9 



F.tnpetrum nigrum 87 



Encephalic Anatomy, Contributions to. 73 



Encke's Comet 126, 258 



Encope 145 



Endocranium, The, and Maxillary Sus- 

 pensorium of the Bee. George 



Macloskie 112, 136 



Energy, Nature of 118 



Energy, Radiant, Definition of 240 



Energy, Transformation of 116, 238 



English Channel, Geological Changes 



in the 36 



Enhydrocyon 303 



Enstatite in Peckhamite 92 



Epidemics and Contagious Diseases, 



Origin of 108 



" Epidote in Molybdenite " (Lewi-). . . . 332 



EpUhemice 23 



" Epizootic" Epidemic of 1880 177 



Epsom Mineral Water, The, of Missouri 285 



Equus 153 



Eridani, e 9 



Errors of Refraction in the Eyes of Mic- 



roscopists. John C. Morgan 8 



Eskars of Maine, The 151 



Esquimaux, The, of Cumberland Sound 



(1)85, (II) 100, (III) 214 



Eteropneusta 97 



Ethnology, American 19 



Ethnology, American Archaeology and, 7 

 Ethnology : Fragmentary Notes on tin- 

 Eskimo of Cumberland Sound. Lud- 



wig Kumlien.. .(1) 85, (II) 100, (III) 214 

 " Ethnology of Africa, Illustrated by a 



large Manuscript Map " (Bickmore) 112 

 Ethyl Nitrate, Reduction of, by Alcohol. 307 

 Ethyl Oxide, compound of, and Tita- 

 nium Tetrachloride 307 



Eulogy on Joseph Henry. Alfred M. 



Mayer in, 127 



Euronome, When Discovered 283 



Evolution, Definition of 309, 310 



Evolution of Locomotives in America. . . 35 

 " Evolution of Parasiiic Plants" (Mee- 

 han) 112 



Evolution of Species 138 



" Examination of Fodders " (Storer) 81 



Exeter Sound 85 



Expense of Repairing a Submarine Ca- 

 ble S3 



" Experiments Concerning the Spirit of 



Coals " (Clayton) 275 



Experiments on the Strength of Yellow 



Pine. R. H. Thurston 175 



Experiments with Pola'ized Platinum 



and Palladium 11 



Experiment with Vapors 31 



Faraday's Observations on Silvering 

 Glass 19 



Fasting (Dr. Tanner) 19 



Fatty Acids Contained in Oils, Method 

 ol Determining 271 



Fatty Matters, Purification and Refining 



;>f 188 



Faye's Comet 214, 258 



Fe. and /'/. in vacuo, Thermo-Electrie 

 Electro-Motive Power of 150 



Feeling and function as factors in Hu- 

 man Development. Lester I''. Ward 210 



FelidSB, Miocene 303 



vustica, Cerebral Fissures of .. .4, 49 

 Fermentation, Rapid Alcoholic 224 



Ferric Gallate and ferric Oxalate, On a 

 Solution of, a- a Reagent for the 



Quantitative Anal] ;is ol \ iia. 180 



Fertilizer, Ammonium Sulphate as a. . . 48 



Fibularia 144, 145, 147 



field Work b\ Amateurs. Ellen Hardin 



Walworth 198 



Filarlae in the proboscis ol the Mosquito 10 



Fine Balid , A. Edwin F. Sawyer 236 



Fire-Blight, The BO-called, ol the Pear, 

 and the Twig-Blight of the Vpple 

 Tree 162 



