346 



INDEX 



Chloral, secondary products of man- 

 ufacture of 197, 199 



Chlorine, action on alcohol 209 



Chloride of gold 201 



Chlorine, manufacture of 166 



Chlorophyll, movements of 289 



Circulation of the culex 291 



Claudet's silver process 170 



Coal and smoke consumption 31 



" gas, purification of 173 



u mines, ventilation of 115 



Coating for outside walls 68 



Coleoptera, Plateau on the flight of.272 



Colorado, mauvaises terres in 240 



" gold and silver mines of.. .241 



Color-blindness 151 



Coccoliths, distribution of 218 



Comet, the light of Winnecke's.... 315 



Comets, new 316 



Combination of sulphur and hydro- 

 gen 203 



Combinations of silicon 193 



Combing flax 112 



Comparative effects of gunpowder 



and gun cotton 97 



Concrete from gas lime 66 



" and iron bridge .47 



Condition of carbon and silicon in 



iron and steel 176 



Condensation of nitrous vapors 206 



Continuity of the gaseous and liquid 



states of matter 128 



Converter, high pressure 119 



Copper, estimation of 204 



Coral, Australian genus 252 



Core, flint flake 334 



Corrosion of iron water-pipes 118 



" " gas and water 



mains 58 



Cotton seed fibrous 123 



Cross-fertilization and law of sex in 

 Euphorbia 288 



Darien canal survey 72 



Darwinian theory of natural selec- 

 tion '. . . 265 



Davis refrigerator car 125 



Dawson on Laurentian graphite.... 228 



Deacon's chlorine process 169 



Deep-sea thermometers 137 



" dredgings 212 



Descent of glaciers 220 



Detection of ammonia 173 



Determination of sulphur in coal gas 173 

 Dextrine, insoluble in water ...... .206 



Diffusion, application of, in sugar re- 

 fineries 102 



Discrimination of mixed fibres 206 



Distribution of coccoliths 21S 



" of marine life 216 



Diamond fields of South Africa 227 



" in Bohemia 222 



" in Brazil 247 



Dnieper, bridge over 47 



Drawings, fixing 124 



Drills, recent improvements in : 60 



Dual! n 96 



Dye, new 122 



Earthquake-proof church 1 16 



Eclipse expedition xv 



Effects of compressed air 0..281 



Efficiency of furnaces and mechanical 



tiring 26 



Electrical discharge 154 



Electric current, use of in calorim- 



etry 139 



Electricity, use of in cauterization.. 270 



Elevation, modern instances of 250 



Embroidery, pentographic Ill 



Enamelling iron and steel, improve- 

 ment in 55 



Engine, Fairlie 36 



Engines, friction of steam 32 



aero-steam 31 



elastic tires for traction.... 38 



pumping 38 



Engineering, the use of wire rope in 



civil and" mechanical 40 



Enrichment of gas 173 



Equilateral drawing board ......... 123 



Estimation of copper 204 



Ethnology and anthropology 339 



Existing coral of palaeozoic type 252 



Extraction of silver 170 



Explosive power of nitro-glycerine. . 95 



Expedition, Sir Samuel Baker's 328 



Extract from the report of Col. W. 

 A. Roebling, chief engineer of the 



N. Y. Bridge Co .* 43 



Evans on anthropology 335 



Euphorbia, cross fertilization and 

 laws of sex in 288 



Farmer's theorem 175 



Fairlie engine 36 



Fertilization of flowers by insects.. .288 

 " cross, and law of sex in 



Euphorbia 288 



Fibrous cotton seed 123 



Fish, volcano 300 



Fishes, changes in 300 



Fizeau's experiments on Newton's 



rings 151 



Flax, combing Ill 



Flint flake core 334 



Flushing sewers 112 



Forbes, utilization of sewage 187 



Forgings, improved appliances for, 



production of. 57 



Formation of limestone 214 



Fossils of Nevada 252 



Fossil tooth from Table Mountain.. 253 



Friction of steam engines 32 



" light 112 



Fruit trees, girdling to make them 



bear 290 



Fungus, intoxicating 292 



Furnaces and "mechanical firing 3(5 



" . rotary puddling 49 



Fusing irodosmiue 201 



Gas lime, concrete from 66 



" enrichment of 173 



" heat by means of. 64 



" influence of carbonic acid in. ... 175 



" McCracken's process 172 



" purification of 173 



Galvanic battery, new 154 



Gelatine, magic lantern pictures on. 119 



Generation spontaneous 266 



Geology of Amazonian valley 243 



Geography of United States 341 



" progress in xx 



