-Telegraphy, 10.—Telephony, 12.—Railways, 14.-Domestic Appliances, 17.
-Electric light, 18.-Lighthouses, 21.-Traction, 22.-Electro-chemistry, 24.
-Transmission of power, 25.-Conclusion, 27.-Vote of thanks to, 28.-Dis-
cussion on the Extraction of Nickel: Opening remarks, 45.-Discussion on
Transmission of Power in Mining: Opening remarks, 75.
Premiums, medals and, presentation of, 28.

Press room, electrical-, 445.

Price, A., B.A., elected associate member, 177.
Printing-presses driven by electric motors, 445.
Prinz, E., the significance of subsoil water, 387.
Pritchard, P. M., elected associate member, 177.
Proposto, Del, polarization and electrolysis, 441.

Pump, steam-, triple-expansion, at the St. Gall waterworks, tests of a, 413.
Putato, E., electric governor for marine engine, 446.

Pyne, Sir T. S., C.S.I., elected member, 176.

Quincke, F., experiments of, on the carbon monoxide process of extracting
nickel, 31 et seq.

Rack railways. See Railways.

Raff, A. C., elected associate member, 177.

Rail-bonding, 456.

-brakes, and skids on shunting-inclines, 407.

Railroads, electric, power consumption on, 404.—Ditto, booster system in, 453.
Rails, steel, on the wear of, 397.

Railway, Assam-Bengal.—“ The Pahartali Locomotive- and Carriage-works,
Assam-Bengal Railway: C. F. Bamford (S.), 212.

block-system, automatic electrical, 406.

-bridge. See Bridge.

Company, South Italian, report on the wear of steel rails, 397.

Congo, "The Congo Railway," L. Trouet (S.), 184.

couplings, improvements in, 405.

East Indian, precautions taken to protect the line from subsidence in

the Bengal colliery districts, 163.

Eastern, of France, extension of the Paris Station of the, 400.
German, East African Central, the, 402.

Gornergrat, electric rack-, on the, 403.

Great Western, measures taken by the, to deal with subsidence due
to coal-mining, 130.

-, Highland.—“ The Erection of a Steel Viaduct upon the Highland
Railway," H. T. White (S.), 198.

Hull and Barnsley, mode of dealing with the danger of subsidence

of bridges, &c., due to coal-workings, 164.

Kansas City, Pittsburg and Gulf, bridge-work on the, 380.

Lancashire, Derbyshire, and East Coast, immunity of, from sub-

sidence due to coal-workings, 132, 140.

locking-bar, electrical, 405.

Orleans, prolongation of the, to the Quai d'Orsay, 400.

Railway, post-wagons, the electric lighting of, 407.

Survey. See Survey.

Wolverhampton and Walsall, precautions taken on account of the,

to avoid damage from coal-workings, 161.

Railways, electrical, development of, 14.

electric, traction, 452.

of the world, the, 399.

rack-rail system, Swiss, 402.

Randall, J. E., efficiency of glow-lamps, 463.
Ransome, J. S., transferred member, 174.

Ravenshaw, W. H.-Discussion on the Transmission of Power in Mining: Reasons
why English engineers had not sooner t aken up the induction motor, 85.
Rayner, T. C., memoir of, 368.

Rays, kathode, celestial phenomena, and, 464.- Kathode and Röntgen
radiations, 467.—Passage of Röntgen rays along opaque tubes, 469.

Read, R. J. G.-Discussion on Subsidence due to Coal-Working: effect of sub-
sidence on arch bridges in the Rhondda Valley, 141.-Subsidences due to
drought, 142.

Redgrave, G. R. See Trouet.

"Refuse Furnaces." G. Watson (S.), 300.

Reid, H., admitted student, 175.

W. C., admitted student, 175.

Reiter's speed-regulator for turbines, 446.

Reservoir-dam. See Dam.

Reservoirs, effects of subsidence of the soil on the water, lightness of. See
Subsidence.

Resistances, liquid, 474.

Revolution-indicator, electric, 475.
Rew, D., B.A., admitted student, 175.

Reynolds, A., admitted student, 175.

J. F. J., elected associate member, 177.

Reyval, J., variation of capacity of accumulators with discharge rate, 444.

Rheinfelden power transmission, the, 110.

Rickman, J., B.A., admitted student, 175.

Ridley, A. E. B., the Fraser electric elevator, 409.

Ristori, E. J.-Discussion on the Transmission of Power in Mining: Localities
in England where water-power could be utilized, 86.

"River Regulation Works, and Harbour and Canal Construction in Germany.”
L. Franzius and G. H. de Thierry (S.), 224. Recent development of maritime
interests in Germany, 224.-Free Port of Bremen, 225.-The Regulation of the
Lower Weser, 230.-The Regulation of the Outer Weser, 235.-Extension of
the Port of Bremerhafen, 236.-The Red Sand Lighthouse at the mouth of
the Weser, 239.-Port of Hamburg, 240.-Port of Stettin, 244.-The North
Sea and Baltic Canal, 246.-Ship-Canal between Dortmund and the harbours
on the Ems, 248.-Elbe-Trave canal, 251.-River Oder improvement works,
252.-Regulation of the Estuary of the Vistula, 254.

Elbe. See Port, Hamburg.

Oder improvement works, 252.

Vistula, regulation of the estuary of the, 254.

Weser, regulation of the, 230 et seq.

Rizzo, G. B. solar radiation in the High Alps, 458.

Roads, Ireland.-" The Management, Maintenance and Cost of Public and County
Roads in Ireland under the Irish Grand Jury System," R. B. Sanders (S.), 258.
Roberts-Austen, W. C., C.B.—“The Extraction of Nickel from its Ores by the
Mond Process," 29.-Discussion on Ditto: Importance of the process of
Canada, 45.-Exhibition of the process as prepared in the laboratory, 45.—
Melting-point of nickel, 52.-Probable economy of the process, 52.
Robertson, F. E.-Correspondence on Subsidence due to Coal-Workings: Pre-
cautions taken by the East Indian Railway company in the colliery districts
of Bengal, 163.-"The Failure of the Embabeh Bridge, Cairo," (S.), 206.
Roche, E. R, B.A.I., elected associate member, 177.

Rolling-mills, the electric driving of accessory machinery in, 423.
Roof-construction, jointed members in, the use of, 376.

--, iron, of 98 feet-span, moving bodily an, 382.

Röntgen radiation and the luminescence of gases, 169. See also Rays.
Rope, wire, 3 inches in diameter, test of a, 373.

Ross, A.-Discussion on Subsidence due to Coal-Workings: General haphazard
nature of the precautions taken by the early railway engineers, 136.-Com-
plicated nature of the problem where several seams occurred superposed, 137.
Rossetti, A. G. M., admitted student, 175.

Rothera, P., admitted student, 175.

Rowan, J., elected member, 176.

Rowland's measurement of the mechanical equivalent, corrected value of, 437.
Rowley, W. W.-Discussion on Subsidence due to Coal-Workings: Effects of
subsidence on the banks of a canal under which two seams of coal had been
extracted, 139.-Practice on the Lancashire, Derbyshire and East Coast
Railway, 140.

Rubber, stress-strain relations of, 437.

Runeberg, R., and Admiral C. Makarov, construction of ice-breakers, 431.
Rymer-Jones, J., universal shunt, 439.

Sacerdote, P., deformations of dielectric in electric field, 460.

Salt-mining, subsidence of the soil due to. See Subsidence.

Salts, coloured, photo-electric relations of, 460.

Sand, standard, for cement-testing, 372.

Sanders, R. B.-" The Management, Maintenance and Cost of Public and County
Roads in Ireland under the Irish Grand Jury System," (S.), 258.

Saner, J. A.-Discussion on Subsidence due to Coal-Workings: Effects of brine-
pumping in Cheshire on the surface soil, 124.

Sartiaux, E., electric capstans, 475.

Sayers' automatic third-brush regulation of dynamos, 461.

Schilling, D. E., street-lighting with incandescent gas-burners in Munich, 393.

Schluckebier, wireless telegraphy, 430.

Schwabe, von, the German East African Central Railway, 402.

Sea-coast protection works in Holland, 385.

Selector system of circuits, 477.

Sellers, Dr. C.-Correspondence on the Transmission of Power in Mining: Trans-
mission plant of the Niagara Falls Power Company, 109.

Serpell, D. L., admitted student, 175.

Servo-motor, application of the, in governing turbines, 88.

Sewage. The water-carriage system in France, 389.

Sewage-works, Castleford, damage to the service tanks, from subsidence due to
coal-workings, 163.

Ravensthorpe, damage to settling tanks from the subsidence due
to coal-workings, 162.

Sewerage-works. "Karachi Sewerage- Works," J. Strachan, (S.), 272.
Sheba Gold Mining Company, electrical installation of the, at Barberton, S.A.,
56 et seq.

Shelford, W.-Correspondence on Subsidence due to Coal-Workings: Mode of
dealing with the difficulty on the main line of the Hull and Barnsley
railway, 164.

Shields, E. O., admitted student, 175.

Shoubridge, H. O. B., elected associate member, 177.

Shunt, universal, 439.

Siemens, A.-Discussion on the Transmission of Power in Mining: The employ-
ment of the 2-phase or 3-phase system a matter for particular cases and not
one admitting of generalization, 91.—Electric lighting of Godalming in 1882,
93.-Water-power versus steam-power, 93.-Difficulty of introducing new
machines in England, 94.

Sigle, von, rail-brakes and skids on shunting inclines, 407.

Simon, E. D., admitted student, 175.

Simons, P., the Kornhaus bridge at Berne, 377.

Sinclair, A. R., admitted student, 175.

R., memoir of, 353.

Slag of the basic open-hearth furnace, on the, 420.
Slit action, electro-dynamic, 465.

Smith, A. B., admitted student, 175.

G. A., elected associate member, 177.

Smith's dock on the Tyne, electrical plant for pumping at, 85.
Soil, subsidence of the. See Subsidence.

Solar radiation in the High Alps, 458.

Somers, W. T. W., elected associate member, 177.

Sopwith, A.-Correspondence on Subsidence due to Coal-Workings: Important

bearing upon the subject of the immediate surface deposits, lying over the
bed rock, 165.

Sparrow, C. S., admitted student, 175.

Speed-gear, variable. Morrison's apparatus for power-conversion, 447.

Spencer, E. S., B.Sc., admitted student, 175.

Stacey, W. H., admitted student, 175.

Standardizing of generators, motors and transformers, 447.

Stanger, R. H. H., admitted student, 175.

Stead, J. E.-Discussion on the Extraction of Nickel: Chemical aspects of Dr.
Mond's process, 48.

Steam-boilers.-See Boilers.

-pumps. See Pumps.

Steavenson, A. L.-Correspondence on Subsidence due to Coal- Workings: Numerous
conditions governing the results a bar to a general solution of the question,
167.-Observations of Messrs. Nicholas Wood and E. F. Boyd in 1863, 168.
Steel bars. See Bars.

making, open-hearth, an improvement in, 421.

mechanical properties of, the influence of arsenic on the, 425.

nickel, influence of the Mond process on the future of, 50 et seq.

the magnetic properties of, 426, 471.

Steels, a study of certain special, 427.

Steiger, A.-Discussion on the Transmission of Power in Mining: Application of
the Servo-motor as an adjunct of the ordinary governor for governing
turbines, 88.

Steinmetz, C. P., single-phase induction motor, 448.

Sterling, J., temperature in deep mines, 415.

Stewart, A., transferred member, 174.

C. E., "Trial Survey for a Railway over the Outeniqua Mountains, Cape
Colony," (S.) 178.

C. H., B.Sc., admitted student, 175.

Stirling, J,, elected associate member, 177.

Stockman, B., transferred member, 174.

Stodola, A., tests of a triple-expansion steam-pump at the St. Gall waterworks,

413.

Stone-like bodies, the tensile strength of, 371.

Storrs, H. T., B.Sc., elected associate member, 177.

Strachan, J., "Karachi Sewerage- Works" (S.), 272.

Straneo, P., determination of thermal and electric conductivities, 439.

Strange, W. L., transferred member, 174.

Street-lighting with incandescent gas-burners in Munich, 393.

railways, electric, in Baltimore, 456.

Strength of materials." Note on the Endurance of Steel Bars Subjected to Repeti-
tion of Tensional Stress," E. G. Coker (S.), 294.

Strub, E., Swiss railways of the rack-rail system, 402.
Stübben, J., the water-carriage system in France, 389.
Subsidence of the soil.-"The Effect of Subsidence due to Coal-Workings upon
Bridges and Other Structures," S. R. Kay, 114.-Circumstances under which
precautions have to be taken to counteract the danger of subsidence in the
English coal-fields, 114.-The principles of subsidence following the working
of the coal as influencing the position and character of the works, 119.—
Suiting the design to the supposition that the coal may afterwards be worked
out, 123.—Discussion: J. Mansergh, V.P., 124; J. A. Saner, 124; T. Wright,
126; J. A. McDonald, 128; J. C. Inglis, 130; R. E. Cooper, 132; H. S.
Childe, 135; A. Ross, 136; W. B. Worthington, 138; W. W. Rowley, 139;
R. J. G. Read, 141; Sir B. Baker, 143; S. R. Kay, 147.-Correspondence :
B. H. Brough, 150; T. F. Brown, 151; T. Gillott, 152; H. G. Graves, 154;
H. A. Hill, 155; H. W. Hughes, 157; J. A. Longden, 160; J. H. Lynde, 161;
M. Paterson, 162; F. E. Robertson, 163; W. Shelford, 164; A. Sopwith, 165;
A. L. Steavenson, 167; E. B. Wain, 169; S. R. Kay, 171.

Sunders, G., admitted student, 175.

Survey." Trial Survey for a Railway over the Outeniqua Mountains, Cape
Colony," C. E. Stewart (S.), 178.

Swinton, A. A. C.-Discussion on the Transmission of Power in Mining: Oil-
insulation for transformers, 85.-Transmission-plant for the Armiston Coal
company, 85.—Ditto for pumping at Smith's Dock on the Tyne, 85.—Trans-
ferred member, 174.-Kathode and Röntgen radiators, 467.

Symanski, Dr., disinfection of dwellings by means of formic aldehyde, 39.