R.S., c. 1 (5th Supp.)  Income Tax Act 1 The portion of the definition  specified investment business  in subsection 125(7) of the  Income Tax Act  before paragraph (a) is replaced by the following: specified investment business , carried on by a corporation in a taxation year, means a business (other than a business carried on by a credit union, a business of leasing property other than real or immovable property or  a campground business ) the principal purpose of which is to derive income (including interest, dividends, rents and royalties) from property but, except where the corporation was a prescribed labour-sponsored venture capital corporation at any time in the year, does not include a business carried on by the corporation in the year where