112. H.M.S. _Dreadnought_ _To face_ 332 113. H.M.S. _Lightning_, torpedo-boat _To face_ 334 114. H.M.S. _Tartar_, torpedo-boat _To face_ 334 115. H.M.S. _Lord Nelson_ _To face_ 336 116. H.M.S. _Invincible_, armoured cruiser _To face_ 336 The last nine from photographs by G. West and Son 117. The _Minas Geraes_, Brazilian battleship _To face_ 336 By special permission of the Brazilian Naval Commission, from a photograph kindly supplied by Messrs. Armstrong, Whitworth and Co. 118. The _Kearsarge_, U.S. Navy _To face_ 340 119. The _San Francisco_, U.S. Navy _To face_ 340 Both from photographs by G. West and Son 120. The _Monitoria_ _To face_ 348 By courtesy of Messrs. Osbourne Graham and Co. 121. The _Iroquois_ and _Navahoe_ _To face_ 348 By permission of the _Syren and Shipping_ 122. The _Monitoria_, transverse section 350 By courtesy of Messrs. Osbourne Graham and Co. 123. The old Floating Dock at Rotherhithe, _circa_ 1800 _To face_ 354 By courtesy of Messrs. Clark and Standfield 124. Model of the Bermuda Dock _To face_ 356 From the original at South Kensington 125. Self-docking of the Bermuda Dock (well heeled) _To face_ 358 126. Bermuda Dock: Centre Pontoon Self-docked _To face_ 358 127. Bolted Sectional Dock lifting a Vessel _To face_ 360 128. The Cartagena Dock _To face_ 362 The last four by courtesy of Messrs. Clark and Standfield 129. The _Baikal_ _To face_ 362 By courtesy of the _Magazine of Commerce_ 130. The _Drottning Victoria_ _To face_ 366 From a photograph by Frank and Sons, by courtesy of the _Shipbuilder_ and Messrs. Swan, Hunter, and Wigham Richardson 131. The _Ermack_ _To face_ 370 By courtesy of Sir W. G. Armstrong, Whitworth and Co. 132. The _Earl Grey_ _To face_ 370 By courtesy of the _Magazine of Commerce_ 133. The Royal Yacht _Victoria and Albert_ _To face_ 372 134. The Imperial Yacht _Hohenzollern_ _To face_ 372 Photographs by G. West and Son PLANS 135. The Evolution of Floating Docks, 1800-1910 389 By courtesy of Messrs. Clark and Standfield CHAPTER I PRIMITIVE EXPERIMENTS IN PROPULSION--SOME EARLY EXPERIMENTS WITH STEAM