INDEX. 
607 
Sirius, on the parallax of, 148. 
Skutteruder mine, on two Norwegian 
cobalt ores from the, 482. 
Sraee (A.) on the galvanic properties of 
metals, and on a new chemico-mecha- 
nical battery 315; on the galvanic pro- 
perties of the elementary bodies, and on 
the amalgamation of zinc, 422; on the 
production of electrotypes, 530 ; on the 
structure of normal and adventitious 
bone, 598. 
Smith (J. D.) on the supposed formation 
of inorganic elements during fermenta- 
tion, 251. 
Societies, Learned : — Royal Astronomical, 
72, 148; Linnean, 76; Geological, 144; 
Royal Irish Academy, 224 ; Royal, 329, 
526, 590; Royal Institution, 338, 447. 
Solar spectrum and photography, 239. 
Solar spectrum, on the chemical action of 
the, 267. 
Solly (Ed., Jun.) on the precipitation of 
copper by voltaic electricity, 309. 
Spectrum, solar, on the chemical action of 
the rays of the, 331. 
Steam engine, on the, 562 ; extracts from 
M. Pambour’s work, 563. 
Steam, on the pressure of, 510; experi- 
ments of M. Arago and Dulong, 510; 
of Mr. Philip Taylor, 510. 
Stearopten of oil of pepperment, on the 
compounds derived from the, 418. 
Strata of Runton, freshwater, 363. 
Substitutions, on the theory of, 152; on 
the law of, and the theory of chemical 
types, 322, 442 ; theory of, pond gas, 339. 
Sullivan (Lieut.) of H. M. S. “ Beagle” 
to the Editor of “ Ann. of Electricity,” 
on the protection afforded by a con- 
tinuous conductor, 408. 
Sulphate of the peroxide of iron, decomposi- 
tion of the neutral, by boiling its solu- 
tion, 130; of m.agnesia, 236. 
Sulphuric acid, decomposition of salicin 
by, 219. 
Summer of 1839, on the wet, 600. 
Sun, light of the, experiments made in the 
south of Virginia on the, 81. 
Swansea, on meteorological phasnomena 
observed at, 87. 
Sylvester (Prof.) on derivation of co-exis- 
tence ; being the theory of simultaneous 
simple homogeneous equations, 37 ; on 
determining by mere inspection the de- 
rivatives from two equations of any de- 
gree, 132. 
Taylor (Philip) on the pressure of steam, 
510. 
Telescope, on an apparent inversion of 
perspective in viewing objects with a, 
506. 
Temperature of the sea, table of results on 
the, 177. 
Thomas (S. H.), meteorological observa- 
tions made at Alten in Finmarken, 596. 
Tovey (J.) on the undulatory theory of 
light, absorption of light, 181. 
Trimmingham, protuberances of chalk 
near, 355. 
Undulatory theory of light, on the. 
Urine, diabetic blood and, 238. 
Uterus, gravid, on the nerves of the, 
590. 
Valz (M.), letter from, to Sir J. F. W. 
Herschel, Bart., on the variation of the 
apparent diameter of Encke’s comet, 
150. 
Vapours, on the heat of, 434. 
Virginia, south of, on some experiments 
made in the, on the light of the sun, 
81. 
Vision, single, with two eyes, 599. 
Voltaic combinations, on the employment 
of carbon in, 35 ; electricity, on the pre- 
cipitation of copper by, 309 ; pile, on 
the source of power in the, 329, 336 ; on 
voltaic reaction, 338 ; disruptive dis- 
charge, on some phsenomena of the, 
478 ; on obtaining the voltaic spark be- 
fore the circuit is complel(;ed, 594. 
Voltameter, gas obtained bjr the, 36. 
Walker (G.) on the moving the knight 
over every square of the chess board al- 
ternately, 498 ; list of works and writers 
referred to, 500. 
Warington (R.) on the coloured films pro- 
duced by electro- chemical agency and 
by heat, 52. 
Weaver (Th.) on the mineral structure of 
the south of Ireland, Devon, and Corn- 
wall, Belgium, the Eifel, &c., 276, 388, 
471. 
Wenlock and Eifel limestones, table of 
classes and orders of fossils in the, with 
the number of species distinct and com- 
mon in each, 394 ; genera and species 
common to the, 394 ; genera common to 
both limestones, 395; genera and species 
distinct in both limestones, 397. 
Weybourne, crag near, 370 ; shells obtain- 
ed from the, 307. 
Williams (Rev. D.) on the geology of 
Devon and Cornwall, 59. 
Zeta-ic products of differences, general 
properties of, 39. 
Zinc and inactive iron, galvanic series 
formed of, 1 15. 
Zinc, precipitation of iron by, 235. 
END OF THE SIXTEENTH VOLUME. 
