Industrial Distribution of Collective-Bargaining Elections, Fiscal Year 1956

p. 195. Nine columns: stub plus Total, four \"won by\" columns, \"In which no representative was chosen\", Eligible voters, Valid votes cast. The first six value columns sit under the spanner \"Number of elections\"; \"Total\" and \"In which no representative was chosen\" are tall headings spanning the second and third heading levels, and \"Eligible voters\" / \"Valid votes cast\" span all three. Arithmetic checks: every detail row's five component columns sum to its printed Total; the 23 manufacturing detail rows sum to the Manufacturing line (3,457 elections; 394,228 eligible voters; 354,401 valid votes); the mining and transportation detail rows sum to their group lines; and the nine major-group lines sum to the printed grand Total in all eight value columns. No discrepancies found. Footnote 1 text: after \"Source\" the scan shows no legible colon (likely a colon that failed to print); transcribed without one. In footnote 2 the mark between \"table 1\" and \"footnote 1\" reads as a heavy period in this scan; transcribed as a comma to match the parallel wording of footnote 3, where the comma is clear. Group rows Manufacturing, Mining, and Transportation, communication, and other public utilities are subtotal rows carrying values (not label-only section lines); their indented detail rows follow. The Coal mining row prints 0 in all eight columns.