348 



I NDEX 



New observatory 312 



" sphygmoscope o 306 



" spectroscope 305 



" theory of sleep 2% 



Neocomian of North America 223 



Nevada, fossils of. 252 



Newton's rings, Fizeau's experi- 

 ments on ....151 



Nickel plating 105 



Nitro-glycerine, explosive power of 95 

 Non-luminosity of Bunsen flame ....176 

 Novel mechanical movement 124 



Oat husks, paper from 120 



Obituary of men eminent in science 342 



Ocean telegraphy 87 



Ooze from Atlantic sea-bed 214 



Optical properties of benzile 151 



Organic matter of human breath in 



health and disease 269 



Organisms in limestone, living 271 



Organic compounds of silica 195 



Oxide of zinc as mordant 208 



Oxygen light o 103 



Ozone, atmospheric 295 



" influence onpicrates 202 



Paper from oat husks 120 



Paving streets Ill 



Pentagraphio embroidery Ill 



Peruvian bismuth 200 



Petroleum for heating locomotive 



boilers 116 



Phenyl brown 207 



Photographing the sun 308 



Photographers' dark room, green 



glass for 122 



Photography applied to military pur- 

 poses 91 



and molecular physics. 147 



microscopic 147 



on wood.. 102 



Phosphate-beds of South Carolina... 234 

 Phosphoric acid from furnace slag.. .205 



Phosphorescence 211 



Physiological effects of carbonic 



acid 287 



Physiology of fats 301 



Piles, sinking screw 53 



Plateau on the flight of coleopotera.272 



Platinum in Lapland 251 



Plating, nickel 105 



Poison, ague 301 



snake 302 



Polishing powder for glass and 



inetal 99 



Post-tertiary phenomena in Michi- 

 gan 239 



Potassium and iron, sulphide of. ...199 



Preparation of anthracene 198 



" " birds and small ani- 

 mals 303 



" bromide of sodium.. 198 

 " " bromhydric acid.... 199 



" " strontium 199 



Preservation of meat 126 



" " stones 68, 69 



" " thallium. 200 



Preserved flesh in Australia 126 



Prize, astronomical 315 



Prof. Tyndall. . 267 



Progress of invention abroad 109 



< 



Projectiles 90 



Protub'erances, solar 311 



Prussian needle-gun 91 



Pulse-beats 271 



Pump, new rotary 65 



Purification of bisulphide of carbon. 203 

 Pyrometer, resistance 156 



Railway axles 38 



" Broadway underground. , . . 4{? 



" steep..... 49 



Reagent for strychnia 173 



" ammonia 173 



Reduction of isatine to Indigo-blue.. 221 



" " carbonic acid 209 



Refraction and dispersion of opaque 



bodies 143 



Relation of light produced to gas 



consumed 174 



Resistance pyrometer 154 



Rhea grass, machines for preparing.104 

 Rinderpest and scarlet fever, antisep- 

 tic treatment of 275 



Rio Grande, valley of 243 



River pollution 184 



Roebling, Col. W. A 43 



Rotary puddling furnaces 49 



" pump, new 65 



Royal Albert Hall of arts and scien- 

 ces, ventilation of 62 



" Astronomical Society.. 309 



Russia sheet iron, manufacture of. . . 29 



Sailing, windward great circle 82 



Salt in the air 317 



Scarlet fever and rinderpest, antisep- 

 tic treatment of 275 



Scotland, gold in 251 



Screw piles, sinking 53 



Sea-water, action of on metallic fas- 

 tenings of ships 79 



Sewers, Flushing 112 



Shaler, on phosphate beds in So. Car- 

 olina , 234 



Ships, iron 1 17 



Silver ore in India 252 



" extraction of..., 1/0 



Silica, geogony of 196 



Silico-propionic acid 195 



Silicon, heat of combination 181 



Silk culturc,insect destructive to the 274 



Single rail tramway 115 



Sir Samuel Baker's expedition 328 



Skin grafting 284 



Slag 116 



Sleep, new theory of. 296 



Smith, Angus, on chemical clima- 

 tology 189 



Smoke and coal consumption 31 



Snake poison 302 



Sodium as a flux 202 



Solar protuberances .". . .311 



Solar spots 309 



Solid, bisulphide of carbon 203 



Solubility of sulphate of lead 165 



Sorel process 70 



Sound, velocity of 134 



Southern hemisphere, new observa- 

 tory in the 312 



Spectrum of the solar atmosphere.. 309 



" " a " prominence.. 311 



Spectroscope, new 303 



