Praed, Mr.,17,48,335.Price, Mr.Joseph,96.Price, SirRose,64.Proney, Mr.,189.Puffer-engine, 1,26,32,60,74,91,102,136,140,150,154,210.Pumping engine,131,148,150,171,182,189,198,207,211,217,220,240,257.Pumps,119,124,198,207,211,333.Punta de Arenas,260,267.Q.Quarrying,22,26.Quebrada-honda,262.R.Railway,148.'Ranee' locomotive,387.Rastrick, Mr.,18,54,63,66,73,87,195,200,204,212.Rawlings, Mr.,62.Rees's Cyclopædia,181.Reform Column,390.Rennie, Mr.,24,28,31,157,181,184,187,320,339,356,358,372,381.Reynolds, Mr.,10,151.Rhine River,295,297,302.Rice, Spring,311,388.Richards, Mr.,19,56.Ridley, SirMatthew,388.Robarts, Mr.,390.Roberts, Mr.,38.RobinsonandBuchanan,15,16.Rock boring,110,206.'Rocket,'354.Roland, Mr.,196,229.Rolling mill,4,132,137,209,220.Rotterdam,295.Rowe, George,163.Rowe, Mr.,231.S.Safety-plug,126.St. Agnes Head,59,171.St. Aubyn, SirJohn,335.St. Ives,8,16,302.Saltram stream,102.San José,267.San José River,266.San Juan de Nicaragua,265,269,271.San Martin,249.Sandys,Carne, andVivian,303.'Sanspareil,'204.Santa Rosa,237.Saunders, James,231.Savery,114,117,319.Sawing by steam,41.Screw-bit,27.Screw-power,293.Screw-propeller,67,384.Serapique,265,266,280.Shammal engine,121,158,166,177.Sharratt, Mr.,128.Sheffield, Mr.,9.Ships of iron,286.Silver statue,244.Sims, Mr.,87,102,106,150,153,176,304.Sinclair, SirJohn,17,40,41,47.Sing, Mr.,66.Smelting furnace,8.Smiles, Mr.,353.Smith, Mr.,95,241.Smith, Mr.Thomas,66,67.Smoke burner,20.Soho,179.Somerset, Duke of,390.South America,188,195,225,227,260,309.Spade by steam,40,58.Spanish Government,205,254.Spanish merchants,2.Spring steelyard,371.Steam agriculture,41,43,58.Steam agriculture, boat,17,41,329,337,356,359,375,378.Steam crane,23,27.Steam crane, cushion,84.Steam crane, mash-tub,14.Steam crane, Navigation Company,295.Steam crane, paddle,369.Steam crane, plough,43,58.Steam pressure,1,14,20,32,34,69,74,86,91,100,102,109,121,123,126,142,149,153,155,179,184,192,210,309,330,337,358,386.Steam stone-boring,25,27,29,30.Steam stone-boring, Users' Association,358.Stephenson,272,273,279,283,353.Stevenson, Mr. W. B.,247.Stone-borer,22,24,27.Stone-crusher,1.Stone-splitter,25.Stourbridge,132.Stray Park,159,166,169,175,177,183.Strength,90.Strokes,20,32,36,82,91,98,100,210.Stuffing box,31,79,84.Sugar-boiling,3.Sugar mill,2,50.Superheating steam,290,315,324,330,376.Surface-air condenser,333,335,339,341,343,374.Surface-water condenser,19,316,322,324,329,332,335,338,341,343,374.Swaine, Charles,119.Sycombe, Mr.,232.Symonds, Captain,339.'Syria,' steamboat,384.T.Tanks,388.'Tasmania,' steamboat,314.Taylor, Mr.,118,180.Teague, Captain,197,199,229.Telford, Mr.,336.Thomas, CaptainCharles,1,74,162.Thomas, CaptainJacob,157.Thomas, CaptainJosiah,167.Thompson, Mr.,388.Thorne, Dr.,246.Thrashing engine,17,21,36,38,40,42,54,61,64,68.Tilly, Captain,229.Tin Croft,170,173.Tormentor,58.Treasury, Wheal,152.Trecothick, Mr.,47,50.Treskerby,102,105,107,176,305.Trethuoy, Mr.William,68.Trevarthen, Captain,213,230.Trevithick, R., Jun.,158.Trevithick, Sen.,115.Trevithick, Mrs.,1.Trewithen,38,68.Trinity Board,143,150.Tubular Boiler,32,115,119,153,291,308,325,339,344,359,376,387.Tyack, Mr.John,295.U.United Mines,304.Upright Boiler,41,60,290,332,339.Uville, Mr.,32,63,196,200,204,208,212,214,217,221,224,227,229,236,240,244,245.V.Vacuum,69,157,325.Valley puffer,119,142.Valves,160.Viceroy,226,251,259.Vivian, CaptainAndrew,52,88,96,116,125,138,140,141,152,154,165,306.Vivian, CaptainHenry,90,215,230,240.Vivian, CaptainJoseph,101,142.Vivian, CaptainNicholas,157,187.Vivian, Henry,60.Vivian, Mr.Simon,152.W.Ward, Mr.,361.Warren, Mr.,66.Warsop, Mr.,10.Water-pressure engine,13,293,310.Water-propeller,378.Waters, Mr.,250.Waterwitch Company,383.Watkin, SirEdward,273.Watson, Mr.,247.Watt,21,33,47,75,80,83,86,92,95,98,103,105,112,115,118,124,125,126,128,150,156,159,163,170,175,178,180,183,189,191,196,211,224,230,290,300,308,312,319,323,328,331,352,370,374,386,388,395.Welsh locomotive,42,68.West India Docks,3,133.West India engine,39,45,53,63,195,201.West, John,160.West, William,158,163.Wheal, Abraham,148,151,153.Wheal, Alfred,19,54,103,105,106.Wheal Clowance,153.Wheal Concord,103.Wheal Damsel,103,327.Wheal Gens,117,118,155,159,169,177.Wheal Jewel,150.Wheal Kitty,153.Wheal Liberty,171.Wheal Lushington,103.Wheal Prosper,69,84,106,171.Wheal Regent,102.Wheal Seal-hole,170,360.Wheal Towan,157,178,185,316,327,331,360,369.Wheal Treasure,102.Wheal Vor,83,327.Whims,17,32,39,60,119,128,141,150,153,172.Whitehead, Mr.,139.'Wildman,' ship,217.Williams, Messrs.,22,88,106,109,124,150,153,184,281,283,304.Williams, William,220.Wilson, Mr.,386.Winding engine, 2,201,208,217,220,240.Windmill,296.Wollaston, Dr.,293.Wood, Mr.,4.Woolf, Arthur,80,83,86,92,96,111,180,189,316.Woolwich,286,335.Worcester,133.Y.Yanacancha,238.Yonge, Don,280.Z.Zuyder Zee,302.