GENERAL INDEX. 



425 



Production of luminous impressions on 



the eye, 1 17 



of minerals, artificial, 167 



Progress of navigation, 333 



Propeller for canals, 14 



Properties of chloroform, 215 



Proportion of light reflected and trans- 

 mitted, 139 

 Propulsion, marine, improvement in, 13 

 of vessels, new mode of ap- 

 plying steam to, 12 

 Protection of iron from oxidation, S3 

 Protrusion of icy columns from certain 



kinds of earth, 157 



PROVOSTAYE AND DESAINS, 141 



Pump, centrifugal, 63 



" for mines, 63 



Purification and properties ofchloroform.215 



of coal gas, S3 



of nitric acid from oil of 



vitriol. 219 



Pyrites, iron, arsenic in, 179 



Quartz, rutile and chlorite in, 302 



QUATREFAGES, 3VL, 334, 349 



Quinine, substitute for, 219 



test for, 219 



Rabbits, new breed of, 346 



Races of men, different, hair of, 3-38 



size of the brain in, 353 



Radiata, alternation of generation in, 

 analogy with the modes of reproduc- 

 tion in plants, 333 

 Kail, new compound, 94 

 Railway axles, form of, 17 

 structures, application of iron to, 20 

 trains, register of the speed 



and time of stopping of, 19 



" wheels, 13 



Railways, cast-iron sleepers for, 27 



in England, 23 



prevention of smoke and dust 

 on, 27 



30 

 351 

 67 

 249 

 145 

 212 

 140 

 8 



Ram, hydraulic, improved, 



Rapidity of the nervous current, 



Rat-trap, new. 



Ray, solar, influence of, on oxygen, 



READE, REV. J. B., 



RESOULEAU, M., 



Reflecting power of the plants, 



Regenerative condenser, 



Register, automatic, of the speed and 



time of stopping of trains, 19 



Registering hygrometer, 60 



" scale, 47 



REGNAULT. M., 349 



REIN-SCH, PROF. H., Ill 



Relation of embryonic development to 



permanent forms, 339 



of parasites to other animals, 340 

 of the nitrogen of the air to 



respiration and voice, 207 



Remains, fossil, of the birds of New 



Zealand, 313 



of the Dodo, 345 



Remington's bridge, 3 



Report on zoophytes, 331 



Reproduction, analogy between the 

 modes of, in plants^ and the alterna- 

 tion of generation in RaJiata, 333 

 Reptile, gigantic terrestrial, 310 



30* 



Reptilian footprints in the carboniferous 



rocks of Eastern Pennsylvania, 314 



Resemblance between the faces of men 



and animals, 355 



Resharpening files and rasps by a 



chemical process, 93 



Respiration and voice, relation of the 



nitrogen of the air to, 207 

 of animals, 349 



Resuscitation of frozen fish, 326 



REYNOLDS. JOSEPH, 41 



RICHARDSON. JAMES, 373 



ll'ms of Saturn, third, 365 



RIVE. M. DE LA, 114 



River. Mississippi, physics of, 256 



" Missouri, rate of fall of, 257 



ROBINSON, REV. DR., 356 



Rocks, carboniferous, of Pennsylvania, 



reptilian footprints in, 314 



" magnetic power of glass derived 



from the fusion of, 136 



" sedimentary, origin of curious 



spheroidal structure in, 25S 



ROGER, M., 352 



ROGERS, PROF., 256, 262, 27J 314 



R. E., 293 



Rolling irregular forms, machine for, 33 

 Rooms in warm climates, cooling tii 



atmosphere of. 53 



Rope, wire, improvements in, 4G 



Ropes, hemp, experiments on, 33 



Ross, CAPT., 264. 



ROSSE, EAKL OF, 1376 



Rosin and lard, peculiar compound of, 23S 



Rotary engine, 4 



" printing-press, 31 



Route for vessels to the equator, 384 



Ruin at Newport, 3SS 



RUSSEL, MR., 166 



Rutile in quartz, 302 



Safety-valve, 7 



and signal, 8 



Sahara, flora of, 323 



Salinometers, new, 11 



SALISBURY, J. H., 194 



Salt, American, 7S 



" and salt lakes, origin of, 271 



" diet, influence of, upon the animal 



economy, 192 



" influence of, on vegetation, 191 



'' Lake, Great, 331 



" water, improvements in distilling, 6%. 

 Sandstones, value of, as building ma- 

 terials. 237 

 SARZEAUD, M., 177 

 Satellite, second, of Neptune, 365 

 Saturation of growing wood with anti- 

 septic solutions, 239 

 Saturn, third ring of, 365 

 Scale, thermometric, new, 152 



" weighing and registering, 

 Scandinavia, change of level in, 251 



SCHAEFFBR, MR., 219 



SCHENCK AND GHEMAR, 70 



SCHMIDT. ?>!R.. 63 



SCHONBEIN, M., 245, 249 

 SCHUBERT, E., 



SCHUMACHER, PROP., 356 

 Scoffern's improvements in refining eu- 



:l r 156 



