342 
Index. 
Simple Method of Perforating Glass 
with the Electric Spark n 
Singingin Birds, Instrumental Substitute 
for 24 
Singular Behavior of Stannous Chloride 
with Potassium Chlorate 272 
Sirius 189 
Sirius, Spectrum of 259 
Sismondia 144 
Slags, Artificial, The Structure of 173 
Slaughter-Houses, Disinfection ot 31 
Smell, Organ of, in Insects 320 
Smith, Mr. Greene, Death of 51 
Smithsonian Institution 167, 250, 321 
Smithson, Mr. Janies, Inquiries Con- 
cerning 18 
“Smyth’s Bedford Catalogue 1 ' 318 
“ Smyth's Celestial Cycle '' 213 
Snails, On Land, of the Palaeozoic 
Period 136 
Snakes, Anatomy of the Tongue in . . . . 234 
Social Organization and Mode of Gov- 
ernment of the Ancient Mexicans. . 7 
Society, The, of American Taxidermists. 
William T. Hornaday 37 
Society of American Taxidermists 332 
So-called Fire Blight, The, of the Pear 
Tree, and Twig-Blight of the Apple 
Tree. T. J. Burrill 162 
Soils, Physico-Chemical Analysis ot. .. . 320 
Solar Halo, A Perfect 19 
Solar Heat, Utilization of 69, 247 
Solar Protuberance, A Remarkable. . 200 
Solar Spectroscopic Observations, 1879- 
1880 150 
Solar Spectrum, Observations Made on 
a Group of Rays in the 224 
Solubility of Recently Precipitated Car- 
bonate of Lime in Ammoniacal Salts 188 
Solution, On a, of Ferric Gallate and 
Ferric Oxalate as a Reagent for the 
Quantitative Analysis of Ammonia. 
N. B. Webster 180 
Somatetia spectabilis 101 
Some Facts and Theories Bearing a Re- 
lation to the Distribution of Organic 
Forms on the Globe. W. H. 
Davis 234 
“ Some Microscopic Enclosures in 
Mica." (Rand) 332 
Some Modern Aspects of the Life Ques- 
tion. George F. Barker 112 
Some Needed Changes in, and Addi- 
tions to Physical Nomenclature. A. 
E. Dolbear 238 
“ Some New Mineral Localities.” (Will- 
cox) 332 
Some of the Infusoria Found in Fresh 
Pond, Cambridge. S. P. Sharpies. . 212 
Some Recent American Papers in Com- 
parative Anatomy. Burt G. Wilder. 322 
Sound, Definition of 238 
Sound, Propagation of, by Light, in 
1811 287 
Sound, The Nature of 271 
South American Comet, The Great, (I, 
1880.) 258 
Spanish Mackerel, The, and its Ar- 
tificial Propagation. Charles W. 
Smiley...' 241 
Spasm of Accomodation in the Eyes of 
Microscopists 8 
Spatangus 144, 145. I 47 
Spatularia 253 
“ Species Typicas," (Smith) 23 
Specific Properties of Substances, De- 
duction of the 139 
Spectra, On Multiple, (I) 27, (II) 104, 
(III) 218 
“ Spectroscopic Notes,” (Young) 111 
Spectroscopic Notes on Observations, 
Chiefly Solar, 1879-1880. C. A. 
Young 150 
Spectroscopic Studies of the Sun, Con- 
ducted at the Observatory of Paris. 307 
Spectrum of Coal Gas 107 
Spectrum ot Water 107 
Spectrum, on a Photograph of Jupiter's, 
Showing Evidence of Intrinsic 
Light from that Planet 83 
Spectrum, The, of Hartwig’s Comet. . . 283 
Spencer, Earl of, Speech of, on Agricul- 
ture 31 
j Spirifer prematura 191 
Spores of Moulds 77 
Sprengel Air-Pump, An Improved 
Method of Operating the 291 
Standard Time, Proposed Schedule of . 279 
Star, A Probable Variable 317 
Star, New, Tycho Brahe's 274 
Star, No. 4339, Lalande 317 
State University of Texas 273 
State Microscopical Society of Illinois. . 257 
Stature of the Esquimaux 86 
“ Steady and Vortex Motions in Viscous 
Incompressible Fluids,” (Craig) .... 111 
Steam Engine, Cost of, per hour 84 
Stearin Candle, Temperature of the 
Flame of 24 
Steel, Electrified, Adhesive Power of. . . 84 
Steel, Use of, in Marine Boilers 77 
Stellar Spectrum Photographs 83, 259 
Stenonia 144 
Stereocaulon Vesuvianum, The Chemical 
Constituents of 331 
Sting of Insects, Pilosity due to 318 
Stomochinus 143 
Storms, Causes which Determine the 
Progressive Movement of 328 
Strategus an tints 40 
Strongylocentrotus 145 
Strophites grandceva 136 
“ Structure and Morphological Botany 
of Phtenogomous Plants," (Gray).. 79 
“Structure and Nomenclature of the 
Brain with Special Reference to 
that of the Cat," (Wilder) 112 
Structure of Artificial Slags and eruptive 
Rocks. H. C. Sorby 173 
Structure of Mica Veins in North Caro- 
lina. W. C. Kerr 138 
Student Microscope, A New 284 
“ Studies ot the Color Glow, or Rectilin- 
ear Spectrum.” (Cumming) 67 
Study, a Darwinian 32 
Sturgeon 128 
Styliola 190 
Sub-Marine Telegraph Cable, Duration 
of S3 
Sub-Railway under the Mersey 36 
Suckling, Mode of, of the Elephant 
Calf 10 
“ Sugar Analysis : A Description of the 
Methods used in Estimating the 
Constituents,” (Benjamin) 224 
Sugar, a New Process of Extracting, 
from Molasses 36 
Sugar, Crystallizable, Manufacture oi, 
from Sorghum 78 
Sulphuric Acid, Impure, Action of, up- 
on Platinum 108 
Summer Work, A Bit of 4 
Sun, Inductive Action of, on the Eartli . 247 
Sunlight, Effects of on Certain Chemical 
Compounds 140 
Sunlight, The Action of, on Glass 180 
Sunshine, Automatic Recorder of the 
Daily Duration of 295 
Sun, Spectroscopic Studies of the 307 
“ Sunstone in Labradorite " (Jefferis). 332 
“ Superstitions ” (Gatschet) 2«6 
SurirellecB 23 
Susurrus (Muscular Sound) 113 
Swift’s Comet. E. E. Barnard 223, 318 
Swift’s Comet. A. Hall 283 
Swift's Comit. Wm. W. Payne 295 
Swift's Comet 258, 305, 317 
Swimming bladder in Fishes 36 
Sylvia atricapella 269 
Sylvius, The Fissure of, in the Brain of 
the Orang 3-6, 329 
Syne dr a 222 
Synedrcs 23 
Synonomy of the Cerebral Fissures of 
the Domestic Cat 50 
Synopsis of the Belgian Diatoms 23 
Taenioides in Butcher’s meat 92 
Tasimeter, Edison's 121, 177, 287 
Taste, Depraved, in Animals 120 
Tauri, a 152 
Taxidermy in America 37 
Tay Bridge Disaster, The 70 
Tchikoleff, Electric Lamp of 45 
Tea, Composition and effect of, upon 
the Human System 75 
Tclacontcxta 10 
Telegraph Cable, Submarine, Duration 
of S 3 
I elegraphic Determination of Longi- 
tudes on the East Coast of South 
America 283 
Telegraph, Natural Enemies to the 120 
Telegraph, The, and Earthquakes 11 
Telegraphy, Visual 14 
Telephone Receiver, A New Form of, 36, 119 
Telephone, The, Among the Indians . . 191 
Telephone, The Bell 140 
Telephone, The Edison 11, 119, 139 
Telephorus rotundicollis 40 
Temnotidaris 143 
Temnopleurus 145 
Tempel’ s Comet, period of 258 
Tempel-Swift Comet, The. A. Hall .... 330 
Temperature, Influence of, on the Dis- 
tribution of Salts in Their Solutions 188 
Temperature of Flames 24 
Tennocyon 303 
Ten taculites fiss urella 190 
Teratological Pilosity 318 
Terpsinoe musica 222 
Terrestrial Progression, The, of the 
Brazilian " Cambota,” Callickthys 
asper. Burt G. Wilder 317 
Tetracidaris 143, 147 
Textile Fabrics of the Ancient Inhabi- 
tants of the Mississippi Valley. J. 
G. Henderson 257 
Thalami Optici, Function of the 115 
Thaumantidae 45 
“The Age of the Copper Bearing 
Rocks of Lake Superior” (Wads- 
worth) 112 
“ The American Monthly Microscopical 
Journal” 224 
“The Ampulla of Vater, and the Pan- 
creatic Ducts in the Domestic Cat, 
Felis domestica " (Gage) 319 
“ The Co-efficient of Expansion of Gas 
Solutions.” (Nichols and Wheeler) 112 
“ The Coming of Age of the ‘ Origin 
of Species' ” (Huxley) 174 
“ The Dacotah Tribes,” (Carrington). . 112 
“Educational Review” 36 
“The Electric Laryngoscope" (Adams). 272 
“ The Errors of a Few English, French 
and American Stage Microscopes ” 
(Rogers) 112 
“ The Excavation of the Upper Basin 
and Clove of the Kaaterskill, Cats- 
kill Mountains, N. Y.” (Julien) 112 
‘ The Indian School at Carlisle Bar- 
racks ” (Gov’t Doc.) 152 
Theine, The Properties of 75 
“The Inter-articular Ligament of the 
Head of the Ribs in the Cat” 
(Gage) 319 
“ The Iron Ores and Lignite of Mont- 
gomery Co. Valley ” (Lewis) 332 
“ The Journal of Nervous and Mental 
Diseases" 235 
“ The Limbs of Sauranodon with Notice 
of New Species ” (Marsh) 322 
“ The Man of the Caverns ” (Dawkins). 275 
“ The Metric System and Inter-change 
of Weights and Measures" (Beach 
and Gibbons) 212 
“ The Microscopists Annual ” 36 
“ The Minerals of Surry Co., N. C.” 
(Lewis) 332 
“ The Mounds of Illinois” (McAdams). 112 
“The Naturalists Directory for 1880” 
(Cassino) 284 
“ The Nature of Heat " (Mohr) 237 
“The New Action of Magnetism on a 
Permanent Electric Current” (Hall) 112 
“ The Northern Belt of Serpentine in 
Radnor Tp." (Rand) 332 
Theobromine, Properties of 75 
“ The Occurrence of Oxide of Antimony 
in Extensive Lodes in Senora, 
Mexico ” (Cox) 112 
“The Optical Characters of Some Mi- 
cas ” (Lewis) 332 
“ The Origin of Species ” (Darwin) 174 
