LIST  OF TABLES	15
PAGE
 92.	Exports of Iron and Steel, 5-year Averages	277
 93.	Imports of Iron and Steel, 1870-1930	278
 94.	British Imports and Exports of Iron and Steel, 1867-1930	279
 95.	British Foreign Trade, 1866-1930	281
 96.	Foreign Trade, xo-year Averages	283
 97.	Employment in the Iron and Steel Industry, 1906-13	283
 98.	Unemployment in the Iron and Steel Trades, 1922-30	283
 99.	Mean Annual Percentage of Workpeople Unemployed, 185 i-i 913	284
100. Shipbuilding—Vessels Launched, 1888-1930	285
i o i. Vessels under Construction, 1882-1931	287
II
102, National Income and Population	288
103* Real Income at 1930 Prices	289
 104.	National Income per head of Working Population, 1850-1930	290
 105.	Value of Foreign Trade, 1870-1930           -	291
 106.	Summary of Tariffs on Iron and Steel, 1870-1930	292
 107.	Comparison of Tariffs in Specific Years	294
III
108.	The Chief Iron Ores of the World	296
IV
109.	Pig Iron Production per Man Employed	315
no. Production per Man per Week—Pre- and Post-war	319
V
in. Puddled Bar Production, 1870-1930	320
VI
 112.	Export Constituents (Five Countries), 1885-1930	322
 113.	British Exports in Order of Importance	324
 114.	Tendency of Change in British Exports	324

 115.	Components of British Iron and Steel Imports, 1913—30	326
 116.	Source of Imports into Britain, 1911-28	326
 117.	Imports into France, Belgium, Germany and U.S.A. in order of
importance	327
 118.	Production of Merchant Bars, 1905-30	327
 119.	Production of Structural Shapes, 1900-30	328
 120.	Production of Steel Rails, 1880-1930	329
 121.	Production of Steel Plates and Sheets, 1890-1930	329
 122.	Production of Galvanized Sheets, 1900-30	330
 123.	Production of Tin Plates, 1871-1930	331
 124.	Production of Wire Rod, 1900-30	332
 125.	Percentage Cost of Wages in Britain, Germany and U.SA.	332
 126.	Shift Wages in Britain and Germany, 1913-29	334
 127.	Railway Rates per Ton-mile, 1884	336
VII
 128.	Associations in the British Iron and Steel Industry, 1919	340
 129.	Employers* Associations in the Iron and Steel Trades, 1927	342
 130.	Grouped Firms in Belgium prior to 1914	342
 131.	Hours of Labour in Britain, Germany and U.S.A.	343