ROCKS-

Dike at DeWitt, N. Y., Darton and

Kemp, ix, 456.

Eleolite-syenite from Hamburg, N.
J., Kemp, v, 298; Litchfield, Me.,
etc., Bayley, iv, 500.
Eruptive rocks, Yellowstone Nat.
Park, Iddings, iv, 429; Chris-
tiania, Brögger, 1, 348.
Gabbros in the Adirondack region,
Smyth, viii, 54; of Minnesota,
augite and plagioclase inter-
growths in, Bayley, iii, 515.
Gneisses of the Laurentian, Adams,
1, 64.

Granite, Conanicut Island, R. I., vi,
372; Durbach, Sauer, iv, 429;
rifting in, Tarr, i, 267.

Granites, Argentine, Romberg, v,
441.

Greenstone schist in Michigan,
Williams, ii, 259.
Igneous rocks, of Arkansas, Wil-
liams, iii, 159; of Eastern N. A.,
Williams, vii, 140; of Mexico,
Cross, v, 119; of South Mt.,
Penn., Williams, iv, 482; of
Tewan Mts., Iddings, i, 248; ori-
gin of, Iddings, iv, 257.
Lavas of Mt. Ingalls, California,
Turner, iv, 455.

Limestone, flexibility, Winslow, iii,
133.

Marble, thermal conductivity, 1,
435.

Mica-peridotite, Kentucky, iv, 286.
Micro-pegmatite, Conanicut Island,
R. I, vi, 374.

Minette, Conanicut Island, R. I.,
vi, 374; Montana, 1, 313.
Nepheline rocks in Brazil, Derby,
v, 74.

Ottrelite in a metamorphic conglom-
erate in the Green Mts., Whittle,
iv, 270.
Peridotite in Central New York,
Smyth, iii, 322; dikes near Ithaca,
N. Y., Kemp, ii, 410.
Phonolite, Great Britain, v, 441.
Phonolites, etc., of Montana, Pirs-
son, 1, 394; Weed, 1, 506.
Phonolitic rocks, Black Hills, vii,
341.

Phyllite, Conanicut Island, R. I.,
vi, 376.

Pyroxenic rock, azure-blue, New
Mexico, Packard and Merrill, iii,
279.

Quartz-diorite porphyrite, 1, 311.
Quartz-syenite porphyry, 1, 311.
Rifting in granite, Tarr, i, 267.

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ROCKS-

Roches Volcaniques, les Enclaves,
Lacroix, vii, 404.

Shonkinite, Montana, 1, 473.
Sodalite-syenite and other rocks
from Montana, Lindgren and
Melville, v, 286; vi, 76.

Spherulites in rhyolite, Iddings and
Penfield, ii, 39.

Syenite, Montana, 1, 470; Sagan-
aga, Winchell, i, 386; same,
Selwyn, iii, 319.

Volcanic, see Igneous above.
Yogoite, Montana, 1, 473.

Rogers, F. J., magnesium as source
of light, iii, 301.

Rood, O. N., color system, iv, 263;
photometric method which is in-
dependent of color, vi, 173.
Rosenbusch, H. vou, Mikroskopische
Physiographie, etc., 3d ed., v, 75.
Rotation air pump, Berge, vi, 479.

measurement of, Prytz, ii, 341.
Roth, J., Geologie, i, 249.
Rothpletz, calcareous algæ, iii, 337;
Querschnitt, Ost-Alpen, vii, 482.
Rothwell, R. P., Mineral Industry in
U. S., 1, 427.

|
Royal Society of London, Catalogue
of scientific papers, 1874-1883, iv,
170.

Rowland, H. A., recent progress in
spectrum analysis, i, 243.

Ruedemann, R., graptolitic genus
Diplograptus, ix, 453.

Ruhmkorff coil, discharge, Moll, iv,
73.

Russell, I. C., are there glacial rec-
ords in the Newark system? i, 499;
expedition to Mt. St. Elias, 1890, ii,
171; Mt. St. Elias and its glaciers,
iii, 169; Lakes of North America, 1,
506.

Russia, Mineralogy of, Kokscharow,
v, 525.

Nikitin on the Quaternary depos-
its of, Wright, v, 459.
Russie, Bibliothèque Géologique, de
la, Nikitin, viii, 72.

S

Sabatier, Nitro-metals, vii, 478.
Sabine, W. C., Laboratory Course in
Physical Measurements, vi, 74.
Salisbury, R. D., Pleistocene and
Pre-pleistocene of Mississippi basin
i, 359; age of the orange sands,
ii, 252; surface formations of south-
ern New Jersey, ix, 157.
Sandersens, Nitro-metals, vii, 478.

Sandwich Is., see Hawaiian Is. and
Kilauea.

Saporta, Recherches sur le Végétation
du niveau Aquitanien, iii, 338.
Sardeson, fossils in St. Peter's sand
stone, iii, 539.

Sargent, C. S., Silva of N. America,
i, 73.

Sauer, A., granite of Durbach, iv,
429.

Saussure, R. de, graphical thermody-
namics, ix, 21.

Saville-Kent, W., Barrier Reef of
Australia, v, 362; vi, 155.
Schaedler, C., Handwörterbuch der
Chemiker, i, 432.

Scheele, Carl Wilhelm, Letters of, v,
434.

Schiendl, C., Geschichte der Photo-
graphie, i, 430.

Schmalhausen, devonische Pflanzen
aus dem Donetz-Becken, ix, 476.
Schneider, E. A., constitution of cer-
tain micas, vermiculites and chlor-
ites, ii, 242; iii, 378.

Schott, C. A., magnetic declination in
the United States, ii, 178.
Schreiner's Spectral-Analyse der Ges-
tirne, v, 358.

Schuchert, C., Devonian rocks in
California, vii, 416.
Science, ix, 167.

Scientific Societies' publications, uni-
formity of size of pages, 1, 431.
Scotland, geol. map, Geikie, v, 74.
Scott, A., Introduction to Chemical
Theory, iii, 152.

Scott, W. B., Osteology of Poëbro-
therium, iv, 428; Lacustrine Ter-
tiary formations, vii, 139; varia-
tions and mutations, viii, 355.
Scoville, W. S., reduction of selenic
acid by potassium bromide in acid
solution, 1, 402.

Scudder, S. H., Carboniferous cock-
roaches, i, 72; fossil insects of N.
America, i, 330; Tertiary insects
of N. America, i, 517; Index to
known fossil insects of the world,
ii, 516, iii, 244; Carboniferous in
sects of France, vii, 90; Tertiary
Aphidæ, vii, 481; Tertiary Tipuliæ,
ii, 481; effect of glaciation on the
present fauna of North America,
viii, 179.

Sea-bottom deposits of the East.
Mediterranean, vii, 242,
Seaman, A. E., Silurian limestone in
No. Michigan, viii, 173.
Seaton, Plants of Orizaba, vi, 76.
Seebohm, H., North Polar basin, vi,
403.

Seismological Journal of Japan, vol.
i, Milne, vi, 309.

Selby, A. L., Mechanics of Solids and
Fluids, v, 528.

Self induction and capacity of coils,
Fromme, viii, 509; small coeffl-
cients of, ix, 152; in iron wires,
Klemencic, ix, 152; and static ca-
pacity in a conductor, Bedell and
Crehore, iv, 389.

Sella, A., native nickel, i, 252.
Selwyn, A. R. C., Saganaga syenite,
iii, 319.
Sensations

of interrupted
Mayer, vii, 283.

tones,

Serpent from Iowa, Call, i, 297.
Seward, A. C., fossil plants as tests of
climate, v, 438.

Shaler, N. S., on morasses, iii, 155;
on coral reef of east Florida, iii,
155; origin and nature of soils, v,
163; pleistocene dislocations of the
U. S., vii, 138; lower Silurian
limestone, Tennessee, ix, 160.
Sharpless, F. F., Michigan minerals,
ii, 499.

Shaw, W. N., Practical Physics, v,
436.

Sheldon, S., Chapters on electricity,
ii, 511.

Sherzer, W. H., native sulphur in
Michigan, 1, 246.

Shooting stars, catalogue of radiant
points of, Denning, i, 75.
Silica, Native, Wright, 1, 274.
Silicates, constitution, Clarke, 1, 274.
Silver, allotropic, Lea, see under

chemistry; colloidal, Barus, viii,
451; modifications, Lüdke, vii, 134.
Simmons, O. L., development of the
lungs of spiders, viii, 119.

Sinter, siliceous, gold-bearing, Weed,
ii, 166.

Smith. C. G., estimation of chlorates,
ii, 220.

Smith, E. A., geological survey of
Alabama, i, 330, 436; iv, 78, 427;
v, 163; vii, 481; underthrust folds
and faults, v, 305; post-Eocene
formations of Alabama, vii, 285;
fossil resin, viii, 73.

Smith, E. F., Electro-chemical analy-
sis, i, 69; Experiments for students
in General Chemistry, iii, 153.
Smith, J. P., Arkansas Coal Measures,
vii, 482; Trias and Jura of Shasta
Co., Calif., viii, 350; Carboniferous
strata of Shasta Co., Calif., viii,
350; metamorphic series of the
Shasta region of California, 1, 346.
Smith, W., preparation of nitrogen
monoxide, vii, 475.

Smithsonian Geographical Tables,
Woodward, ix, 327.

Institution, report for 1890, iii,

540.

Meteorological Tables, vi, 160.
Smock, J. C., New Jersey Geol. report,
1891, iv, 77.

Smyth, C. H., Jr., peridotite in cen-
tral New York, iii, 322; Clinton
iron ore, iii, 487; alnoite contain-
ing melilite, vi, 104; gabbros in the
Adirondack region, viii, 54.
Smyth, H. L., geology of Steep Rock
Lake, Ontario, ii, 317; Menominee
and Marquette series in Michigan,
vii, 216.

Snow, B. W., infra red spectra of
alkali metals, v, 68.

Snow, C. H., turquois in N. Mexico,
i, 511.

Snow crystals, G. Nordenskiöld, vi,

312.

refraction of light upon, Whit-
ney, v, 389.

Soap film figures, Quincke, ix, 62.
Soils, origin and nature of, Shaler, v,
163.

Solar atmosphere, movements, Des-
landres, viii, 427.

corona, Bigelow, ii, 1; reply to
Nipher, i, 505.

magnetic period, inversions of
temperatures, viii, 435.

prominences, photographic inves-
tigation of, Hale, ii, 160, 459.

radiation, measures of the inten-
sity, Ferrel, i, 378.

spectrum in the ultra violet, limit
of, Simony, i, 243.

recent progress in, Rowland, i,
243.

system, Harkness, viii, 230.
Soldereder, H., die Tribus der Gaert-
nereen, i, 334.

Solid and liquid states, continuity of,
Barus, i, 325; ii, 125.
Solomon Islands, chalk and flints,
Liversidge, iii, 157.

Solution and pseudo-solution, iii, 333.
Solutions, Ostwald, iii, 335.
Sorauer, P., Physiology of Plants, ix,
325.

Sound, intensity, Wead, i, 232; ii, 21.
velocity, Melde, iii, 239.
and Music, Zahm, v, 69.
Specific heat determined by electric
current, Pfaundler, ii, 341; of
liquid ammonia, Ludeking and
Starr, v, 200.

inductive capacity of a dielectric,
Trouton and Lilly, iv, 254.

Spectra of the alkali metals, infra
red, Snow, v, 68.

flame, of metals, Cochin, vi, 392.
solar, photographic investigation,
Hale, ii, 160.

Spectroscope slits, Wadsworth, viii,

19.

Spectrum analysis of the color of wa-
ter, Vogel, ix, 231.

of argon, see CHEMISTRY.
of liquid oxygen, absorption,
Olszewski, ii, 338.

ultra-violet of the solar prom in-
ences, Hale, ii, 160, 459; of alu-
minum, 1, 71, Runge.

Spencer, J., Theoretical Mechanics,
iv, 256; v, 255.

Spencer, J. W., deformation of the
Algonquin Beach and birth of Lake
Huron, i, 12; high level shores of
the Great Lakes, i, 201; geol. sur-
vey of Georgia, vii, 78; deforma-
tion of Lundy Beach and birth of
Lake Erie, vii, 207; duration of Ni-
agara Falls, viii, 455.

Spenzer, J. G., 6-bromvalerianic
acid, ix, 110.

Spiders, development of the lungs,
Simmons, viii, 119.

Spirals with compensated self-induc-
tion, Tesla, viii, 509.
Sprengel pump, Wells, i, 390.
Spurr, J. E., stratigraphic position of
the Thomson slates, viii, 159.
Squier, G. O., electro-chemical effects
due to magnetism, v, 443.
Squinabol, X., florater tiaria Italica, v,
438.

Stanley-Brown, J., bernardinite, a
mineral or a fungus ?, ii, 46.
Stanton, T. W., stratigraphic position
of Bear River formation, iii, 98.
Star catalogue, vii, 406.

Starr, J. E., specific heat of liquid
ammonia, v, 200.

Stars, distance of, by Döppler's prin-
ciple, Colles, v, 259.
Stas, Jean-Servais, v, 442.
Status of high temperature research,
Barus, viii, 332.
Stelzner, A. W., ix, 328.
Stereochemistry, Guide to, Eiloart,
vi, 300.
Stevens, W. LeC., comparison of
formulæ for total radiation, iv, 431;
recent progress in optics, 1, 277, 377.
Stevenson, J. J., Pennsylvania an-
thracite, vi, 302; use of the name
"Catskill," vi, 330.

Stimson, C. T., change of level in the
West Indian region, ix, 321.

REPORTS AND SURVEYS.

Stones for building and decoration,
Merrill, ii, 516.

Storer, F. H., elementary manual of
chemistry, viii, 425.
Story-Maskelyne, N., Crystallogra-
phy, 1, 507.

Sugar Analysis, Wiechmann, i, 69.
Sullivan, G. M., Kentucky geol. sur-
vey, iii, 80.

Surface tension in analysis, Gossart,
iii, 331; and chemical constitution
of liquids, Linebarger, iv, 83.

T

Tarr, R. S., rifting in granite, i, 267;
Permian of Texas, iii, 9; central
Massachusetts moraine, iii, 141;
origin of terraces in glaciated re-
gions, iv, 59; Economic Geology of
the U. S., vii, 151.
Taschenburg, O., Bibliotheca Zoo-
logica, ii, 438; vii, 159.
Taylor, F. B., highest shore line on
Mackinac Island, iii, 210; changes
of level in the region of the Great
Lakes, ix, 69; Niagara and the
Great Lakes, ix, 249.

Teall, J. H. H., origin of crystalline
schists, vi, 480.

Telegraphing without wires, ix, 152.
Telephone for measurement of elec-

trical currents, i, 515; as an optical
instrument, Wien, iii, 155.
Telephonic measurement of electro-
motive force, Barus, viii, 346.
Telescopic work for starlight even-
ings, Denning, ii, 178.
Temperature of the circumpolar re-
gion, iv, 430.

method for obtaining constant,
Clew, iii, 239.

pressure, etc., relations between,
Linebarger, ix, 380.

of minimum visibility, Gray, ix,
232.
Temperatures, low, Pictet, iii, 153;
measurements of high, Holborn and
Wien. iv, 499; Barus, viii, 332, 1,

502. underground, Agassiz, 1, 503.
Terrestrial magnetism, Wilde's expli-
cation, Bauer, iii, 496; secular vari-
ation of, Bauer, 1, 109, 189, 314.
Tesla's experiment, simplification of,
▼, 523.

Texas Academy of Science, Transac-
tions, vol. 1, v, 78.

Permian of, Tarr, iii, 9.

Thermal variation of viscosity and
electrolytic resistance, Barus, iv,
255.

Thermodynamics, graphical, R. de
Saussure, ix, 21.

Thermo-electrics, Barus, vii, 366.
Thome, J. M., Cordoba Durchmus-
terung, vi, 159.

Thompson, J. O., law of elastic
lengthening, iii, 32.

Thompson, S. P., lectures on the Elec-
tromagnet, i, 327; Electricity and
Magnetism, ix, 153.

Thomson, Sir W., popular lectures
and addresses, vol. ii, viii, 433; see
Kelvin.

Thomson's quadrant

electrometer,

Himstedt, vii, 133.
Thorpe, T. E., Dictionary of applied
chemistry, ii, 341; vi, 395.
Thought transference, Lodge, ii, 343.
Thunderstorms, origin, Smith, 1, 430.
Thurston, L. A., recent eruption of
Kilauea, viii, 338.

Thwing, C. B., color photography by
Lippmann's process, ii, 388; photo-
graphic mapping the magnetic-field,
iv, 374.

Time, estimates of geologic, King, v,
1; Upham, v, 209; Fisher, v, 464;
Walcott, vi, 307.

Tin and iron, alloys of, Hedden, iv, 464.
Todd, M. L., total eclipse of the sun,
viii, 76.

Tolstopiatow, M., Récherches Miner-
alogiques, vii, 146.
Total-reflectometer, Pulfrich, i, 431.
Transformations of energy, mechan-
ical into chemical, Lea, vii, 377.
Trinidad, Pitch Lake of, Peckham, 1,
33.

Trowbridge, J., dampening of elec-
tric oscillations on iron wires, ii,
223; phasemeter, iii, 232; oscilla-
tions of lightning discharges, vi,
195; electrical waves on iron wires,
viii, 307; velocity of electric waves,
ix, 297, 1, 104.
Tschermak's theory of the chlorite
group, Clarke, iii, 190.
Turbellaria Acola, von Graff, i, 443.
Turner, H. W., glacial pot-holes in
California, iv, 453; lavas of Mt.
Ingalls, California, iv, 455; gold
ores of California, ix, 374; gold in
serpentine, ix, 478.

Tyrrell, J. B., glacial phenomena west
of Hudson Bay, ix, 322.

Vacuum discharge streamers, action
upon each other, Pupin, iii, 263;
pump, mercury, Pupin, ix, 19.
Van Hise, C. R., conflicting views of
Lake Superior stratigraphy, i, 117;
iron ores of Michigan, iii, 116;
structural relations of the Huro-
nian, iii, 224.

Vapor density under diminished pres-
sure, Schall, iv, 72.

Variations and mutations, Scott, viii,
355.

Veeder, M. A., periodicity of the
aurora, i, 156.

Vegetable resources of India, viii,
511.

Venable, F. P., Short History of
Chemistry, ix, 230.

Verrill, A. E., Echinoderms of North-
eastern America, ix, 127, 199.
Vertebrate Embryology, Minot, vii,
158.

Vertebrate fossils, Marsh, ii, 265, 336;
see GEOLOGY.

Viscosity, investigation of, Barus, v,
87.

Visibility, minimum temperature of,
Vision, persistence of, Ferry, iv, 192.
Gray, ix, 232.
Viviparidæ, distribution of North
American, Call, viii, 132.
Vogdes, A. W., Bibliography of Palæo-
zoic Crustacea, from 1698 to 1889,
i, 436.

Volcanic, see GEOLOGY and ROCKS.
Volckening, G. J., three new analyses
Voltaic arc, mercury, Avon, v, 159.
of sodalite, ix, 465.
Voltameter, use of cupric nitrate in,
Beach, vi, 81.

Vorwelt, u. Entwickelungsgeschichte,
Vulcanite, physical properties, Mayer,
Koken, vii, 483.
i, 54.

W

Wadsworth, F. L. O., eccentricity of
a graduated circle with one vernier,
vii, 373; interrupter for large in-
duction coils, viii, 497; design for
Wadsworth, M. E., relations of the
large spectroscope slits, viii, 19.

eastern sandstone of Keweenaw
Point to the Lower Silurian lime-
stone, ii, 170; trap range of the
Keweenawan series, ii, 417; sub-
divisions of Archæan in Northern
Michigan, v, 72.

Waggener, W. J., mercurial barom-

eter, ii, 387; gelatine slides for lan-
tern projection, v, 78.

Wagner's Chemical Technology, iii,
535.

Walcott, C. D., discovery of fish re-
mains in Lower Silurian beds, i,

245.

fauna of the lower Cambrian, ii,

345.

Cambrian, iii, 244.

Cambrian rocks of Virginia, etc.,
iv, 52; Cambrian rocks of Penn-
sylvania and Maryland, iv, 469.

North American continent dur-
ing the Cambrian, v, 163.

Cambrian rocks of Pennsylvania,
vii, 37; Olenellus in No. New Jer-
sey, vii, 309; appendages of Trilo-
bites, vii, 481.

lower Cambrian rocks in eastern
California, ix, 141; Appalachian
type of folding, ix, 159, 169.