INDEX 



349 



Drying of wood ^ 129 



Durangite 2G5 



Durubility of English locomotives., a? 



Dyeing a fast gray 207 



Dye, explosive 131 



East Indies, petroleum in the 264 



Earthquake-proof buildings 122 



East Kiver bridge 4G 



Eclipse, papers on the 31G 



•' observations of Prof. E. C. 



Pickering on the 318 



Effect of steam heat on hay 133 



Egg, the ovarian 300 



Electric currents, velocity of 154 



Electricity applied to registering vi- 

 brations 162 



Electromotors, vegetable 166 



Elements of matter 185 



Electricity and railroads 23 



Elevation of continents and depres- 

 sion of sea basins 232 



Electric spark, artificial coloration 



of 149 



Electricity and the pulse 153 



Electric fluid, non-existence of. 154 



" telegraph, wave time of . . . . 156 



" discharges, duration of 149 



" spark figures 154 



" organ 86 



" beacons 89 



Electro-heating apparatus 44 



Elephant, fossil Asiatic 30-1 



Engineering items 54 



*' underground 120 



Envelopes, safety 135 



Enamels 202 



Engines, Cornish 134 



Enterprise, telegraph 108 



Epiornis 2S9 



Esquimaux, the 285 



Estimation of iodine 229 



Europe, geodetic measurement in.. .204 



Evaporation by plants 308 



Evolution of ammonia from mush- 

 rooms 222 



Experiments on heavy ordnance. ...117 



Extinct reptiles 305 



Explosive dye 131 



Extraction of zinc from ores 224 



Expedition, the Colorado 265 



Extinction of the mammoth 261 



Extinct cetacea 255 



Fabrics, treating textile 133 



Fairlie steam carriage 35 



Fauna, primordial 291 



Fertilization of flowers by insects . .308 



Fever, hay 282 



Fibrous plants, little known 98 



Figures, electric spark 154 



Fibrine 301 



Fibre, ixtile 100 



Fii^hes with external gills 306 



Fire-proofs, lining for 131 



Filtration 210 



Fire alarm, by M. Dion 131 



Flames, metliod of ascertaining the 



constitution of 175 



Fluosilicic acid for sugar-refining... 199 

 Flowers, fertilization of 308 



Flora, Primordial 307 



Flora and fauna of Oregon and 



Idaho 239 



Forty-two ton hammer r,5 



Fossil plants in tlie Cambrian rocks.257 



Formation of nitre 228 



" urea 279 



Fog whistle 54 



Forests, eflects of removal of on 



climate 339 



Fossil, Asiatic elephant 304 



French cable 54 



Freezing mixture 170 



Frigorific mixtures 109 



Fossil reptiles, new 290 



Formation and phenomena of 



clouds, note on 139 



Foundations made in marshes 116 



Frozen well at Brandon, Vermont.. 235 



French military telegraphs .' 109 



" Atlantic telegraph 102 



Fuel in the form of powder 129 



Furnace, Bessemer's high-pressure.. 65 



Fuel, naphtha for locomotive 38 



" peat for locomotive 37 



Gases, method of detecting "poison- 

 ous 69 



Galvanic battery, the 157 



Gas, heating buildings by 92 



" burners, disposition of. 91 



" for light-houses 90 



" from wood 97 



•* warming churches by 90 



" and air, mixture of 94 



Gauge, rapid change of 68 



Gasometer, immense 54 



Gas engines, ammoniacal 41 



Geology of Venzuela 266 



Geodetic measurement in Europe. . .264 



Geology 233 



Generators, steam 132 



Geology and mineralogy, Chinese... 24.3 



Gills, fishes with external 306 



Glaciers, constitution and motion of.190 

 Glycerine for preserving colors of 



marine animals 295 



** testing for sugar 230 



Glass-rope sponge 305 



Glycerine in crystals 227 



Glass used for light-houses 81 



" coloration of 189 



Gold, decrease in the production of.246 



Growth of cereals , 298 



Graham's experiments with hydro- 

 gen 177 



Ground, engineering under I2O 



Guns, proof of Ill 



Gun-cotton, new propuirty of 126 



Gunnery and photograj^hy 129 



Guano, stratification ot 306 



Gun-cotton, new mode of firing 124 



Gunpowder hammer and pile-driver. 113 



Gulf stream 259 



Gun, the Pnlliser 110 



Hay fever 282 



Hamatoxyline in photography 201 



Hammer, the Joy 132 



Hay, steam heat on 134 



Hammer, forty-two ton 80 



