INDEX. 
623 
Flint-implements, occurrence of, associated with the remains of animals of extinct species, 277. 
Foraminifera, researches on the, 535 (see Carpenter). 
G. 
Gladstone (Dr. J. H.) and Brewster (Sir D.). On the Lines of the Solar Spectrum, 149 (see 
Brewster). 
Gold, electric conducting power of pure, 175. 
Great Eastern Steam-ship, compass deviations in, 375 ; changes in the magnetism of, 376. 
H. 
Herschel (Sir J. F. W.). On the Formulae investigated by Dr. Brinkley for the general Term in 
the Development of Lagrange’s Expression for the Summation of Series and for successive Integra- 
tions, 319; note by A. Cayley, 321. 
Hofmann (Dr. A. W.). Contributions to the Histoiy of the Phosphorus-Bases. First memoii’, 409. 
— Triethylphosphine, preparation of, 410; oxide and other compounds and derivatives of, 412; 
experiments in the methyl-series, 416. 
Second memoir. Theory of Diatomic Bases, 449. — Ethylene group, action of 
dibromide of ethylene on triethylphosphine, 452 ; series of monatomic compounds, monophospho- 
nium compounds, 454 ; sei'ies of diatomic compounds, diphosphonium compounds, 470 ; paradi- 
phosphonium compounds, 489. 
Third memoir. Phosphammoniura- and phospharsonium-, diarsonium- and 
arsammonium-compounds, 497. Series of the mixed diatomic bases, 507 ; phosphammonium-com- 
pounds, 507; phospharsonium-compounds, 518 ; monarsonium-compounds, 521; diarsonium- com- 
pounds, 524 ; methylene, propylene, &c. groups, 527 ; table of compounds formed, 530. 
Holzmann (Dr. M.) and Matthiessen (Dr. A.). On the Effect of the presence of Metals and Metal- 
loids on the Electric Conducting Power of Pure Copper, 85. 
Hopkins (W.). On the Construction of a new Calorimeter for determining the Radiating Powers of 
Surfaces in Air ; and its application to the Surfaces of various Mineral Substances, 379. 
Hoxne, flint-implements discovered at, 304 (see Prestwick). 
I. 
Isoprene, 241 (see Williams). 
J. 
Joule (Dr.) and Thomson (Professor). On the Thermal Effects of Fluids in Motion, 325 (see Thom- 
son). 
K. 
Kopp (Dr. H.). On the Relation between Boiling-point and Composition in Oi’ganic Compounds, 257. 
L. 
Liver, sugar formation in, 595. 
