442 
POPULAR SCIENCE EEYIEW. 
PAGE 
SoLfataras, Origin of MineralVeins in 205 
Southern Observatory, New 82 
Spectra, an Index of 184 
„ of Manganese 333 
Spectrum Analysis 185 
,, of the Aurora 193 
,, of the Zodiacal Light, 192, 305 
,, of Uranus 217 
Spheroidal State of Water 429 
Spiritualism and Animal Magnetism 7 8 
Spleen, Discovery of the Nature of 
the 78 
Sponges 112 
„ the Nature of 167 
Spongilla Structure, New Views of 220 
Stalactitic Bitumen, Crystals of Cal- 
cite surrounding 204 
Star- Atlas, New 183 
Starch, Animal 325 
,, in Potatoes, Machine for 
Estimating 202 
Stars, News from the 381 
„ Proper Motion of the 307 
Steam-Engines, Domestic 96 
Steel, Chromium 212 
„ Elexturo of 208 
„ Gun 207 
„ in New Zealand 211 
,, Phosphorus in 103 
„ Wire, Use of, for Deep-Sea 
Soundings 429 
Stellar Motions of Eecess and 
Approach 416 
Stereoscopic Effect, New Mode of 
Producing 218 
Stigmaria, Structure of 83 
Stone-Age in New Jersey, the 302 
Strains on Arches 96 
Strata, Eelation of Orders of Eep- 
tiles to 91 
Structure of Lepidodendra and Stig- 
maria 83 
Strychnia, Tests for Detecting 201 
Study of Minute Eungi 84 
Sturgeon, Development of the 426 
“ Subterranean World ” 68 
Sugar-making, Prize for the Best 
Essay on 201 
Sulphide of Carbon, Electrisation of 200 
Sulphur, Waste of, in Mining 327 
Sun, the 301 
,, Eclipse of the 136 
,, Total Eclipse of the 79 
Sun-Dew as a Ely-Catcher 85 
Sun-Light, Effect of, on Grains of 
Chlorophyll 86 
Sun-Spot Period 194 
Sun’s Complex Atmosphere 415 
Supplement to Watts’ Dictionary... 180 
Surirella Gemma, Number of Beads 
in 214 
PAGE 
Synonomic Catalogue of the Diurnal 
Lepidoptera 187 
Synthesis of Oil of Eue 87 
Syphilis Corpuscles, the Supposed 322 
Tate’s “ Historical Geology ” 73 
Taylor’s “ Half-Hours at the Sea- 
side” 411 
Technical Journal, New 321 
Telescopes, Unsuspected Cause of 
Diffraction Phenomena in 305 
Temperature and Movements of the 
Deep Sea 121 
,, of the Solar Photo- 
sphere 193 
,, Mechanical Means of 
Lowering the 323 
Temperature-Equilibrium ^an En- 
closure 108 
Test-Objects, the Two Best 330 
Tests for Detecting Strychnia 201 
Thermal Springs, how caused 8S 
Thomson’s “Discovery of a New 
World of Being” 77 
Thunderer , H.M.S 321 
Tissue, Metamorphosis of, while 
Easting 98 
Tobacco, Physiological Action of... 322 
Tolle’s Binocular Eye-piece 104 
„ Immersion |th Object-Glass 105 
Tomocaris Peircei 334 
Torpedo Warfare 320 
Total Eclipse of December 12, 1871 79 
„ Eclipses, Eecords of 80 
Transcendentalism, Eemarks on ... 219 
Travithick, Eichard, Life of 413 
Tungsten Compounds 204 
Tunicata, Chondrine in the 203 
Turning, Patterns for 408 
Turtles, Eossil 316 
Twins, the Ohio 97 
Tyndal’s “ Contributions to Mole- 
cular Physics in the Dominion of 
Eadiant Heat” 297 
Uranus, Spectrum of 21,7 
Uronemus 320 
Uvula, Functions of the 98 
Vascular Cryptogamous Plants of 
N. America 309 
Vegetable Ink 420 
Vegetable Kingdom, Economic Pro- 
ducts from the - 188 
„ Physiology 83, 195, 308 
Venus, Inferior Conjunction of. 81 
Vesuvius, the last Eruption of 317 
Vibration, Apparatus for Studying 217 
