224 
GENERAL INDEX. 
Iron, phosphoric crude, the treatment of, 
in open-hearth furnaces, J. W. Wailes 
on, 1886, 592 
_ and phosphorus, the separation of, 
specially with reference to the manu¬ 
facture of steel, T. Blair on, 1879, 296 
_ photographs of various kinds of, 
H. C. Sorby on microscopical, 1864, 189 
__ plates, IF. Fair bairn's report on the 
resistance of, to statical pressure, 1861, 
280 ; specific gravity of, 282 ; tensile 
strength of, ib .; ductility of, ib .; 
resistance to impact, ib .; resistance to 
compression, 284 ; statical resistance 
to punching, ib .; computation of a 
general formula for the resistance of, to 
projectiles, 285 
_ plates. Captain IF. H. Noble on the 
penetration of, by steel shot, 1866, 403 
-*_preservation of, Prof. Barff on the, 
1877, 199 
_ protosulphate of, Drs. E. Scliunck, 
R. A. Smith, and IT. E. Roscoe on the 
manufacture of, 1861, 119 
_ puddling, C. W. Siemens on, 1868, 
58 
- pure, Dr. A. Matthiessen on the pre¬ 
paration of, 1869, 82 
-recalescence in, Prof. Barrett on, 
1889, 518 
-shipbuilding, R. Taylorson on the 
diagonal principle of, 1863, 189 
_ ships , Charles M. Palmer on the 
construction of, 1863, 694 
__ ships, IF. Vairbairn on the strength 
of materials considered in relation to 
the construction of, 1865, 243 
=*_ ships, compass correction in, Sir 
W. Thomson on, 1876, 45 
- silicate of hydrated protoxide of, 
A. Gages on the solubility of, 1863, 204 
*_silicium in, Dr. Phipson on, 1865, 34 
_silicon in cast, T. Turner on, 1886, 
595 
- silicon and, alloys of, R. A. Hadfield 
on, 1889, 267 
__silicon, the influence of, on the pro¬ 
perties of, T. Turner on, 1886, 597 
__ and steel, the influence of silicon on 
the properties of, report on, 1887, 43 ; 
1888, 69 ; 1889, 267 ; 1890, 262 
_smelting, Dr. B. H. Paul on useful 
applications of slag from, 1864, 37 
__spongy, I. Lowthian Bell on the de¬ 
composition of carbonic oxide by, 1869, 
62 
_and steel, analysis of, proposed in¬ 
ternational standards to control the, 
Prof. J. W. Langley on, 1888, 640 
_ and steel, analysis of, proposed in¬ 
ternational standards to control the, 
report of the committee on, 1889, 50 ; 
1890, 262 
_and steel, John Fernie on the, 
shown at the French Exhibition, 1867, 
154 
Iron and steel, Ferdinand Kohn on the, 
at the Paris Exhibition, 1867, 155 
-stone, Cleveland, J. Pattinson on 
zinc, nickel, and cobalt in the, 1863, 49 
- stone, Cleveland, in the West of 
England, Charles Moore on the equiva¬ 
lents of the, 1863, 83 
- stone, Dr. T. L. Phipson on an ex¬ 
traordinary, 1866, 43 
- stone of the Dudley coal-field, H. 
Woodward on the discovery of a new 
and very perfect Arachnid from the, 
1871, 112 
f- testing, J. Swinburne and W. F. 
Bourne on, 1890, 753 
-the temporary thermo-current in, F. 
T. Trouton on, 1889, 517 
-titanium in, Dr. Riley on, 1863, 55 
-volume in, the changes of, when 
passing from the liquid to the solid 
state, and an instrument for observing 
the same, T. Wrightson on, 1879, 506 
-found on Vesuvius, Dr. H. J. John- 
ston-Lavis on a mass containing me¬ 
tallic, 1888, 667 
* -works, regenerative gas-furnaces as 
applied to, C. W. Siemens on, 1863 ,192 
-works, J. Willcock on the Bowling, 
1873, 219 
-wrought, Henry Bessemer on the 
manufacture of cast steel, its progress, 
and emplovment as a substitute for, 
1865, 165 
- wrought, Principal Forbes on the 
thermal conducting power of, 1865, 12 
Iroquois, the customs and language of 
the, remarks on, by Mrs. E. A. Smith, 
1884, 914 
* Irradiat ion, Prof. G. Forbes on, 1873,38 
Irrationality of 7 r, Lambert’s proof of the, 
J. W. L. Glaisher on, and the irra¬ 
tionality of certain other quantities, 
1871, 12 
^Irrigation of the Casale district, P. Le 
Neve Foster, jun., on the, 1873, 214 
-of Upper Lombardy, P. Le Neve 
Foster, jun., on the, 1868, 190 
Irritability, Prof. M. M. Hartog on 
Adelphotaxy, an undescribed form of, 
1888, 702 
Irvine (R.)and Dr. G. S. Woodhead on 
the secretion of carbonate of lime by 
animals, 1889, 637 
Irving (Rev. A.), notes on Alpine post- 
Carboniferous (Dyassic) and Triassic 
geology, 1882, 551 
-on the action of sunlight on P 2 0 3 , 
1883, 463 ; Djms versus Permian, 503 ; 
on the colouration of some sands, and 
the cementation of siliceous sand¬ 
stones, 504 
- dissociation and contact action, 
