Ornstein's Data on Interlocking Directorates Among Major Canadian
Firms

[1] Firm number, ranked by assets

[2] Assets in millions of dollars

[3] Industrial Sector
    AGR = agriculture, food, light industry
    MIN = mining, metals, etc.
    WOD = wood and paper
    CON = construction
    MAN = heavy manufacturing
    TRN = transport
    MER = merchandizing
    BNK = banks
    FIN = other financials
    HLD = holding companies

[4] Nation of Control
    CAN = Canada
    US  = United States
    UK  = Britain
    OTH = other foreign

[5] Number of interlocking director and executive positions

Source of Data: Personal communication from Michael Ornstein, Department
of Sociology, York University; see Ornstein (1976), "The boards 
and executives of the largest Canadian corporations." Canadian 
Journal of Sociology, 1:411-437.