No. 21. Income Tax. 1967. "capital expenditure" means the nett expenditure after deducting any grants, subsidies or other payments received from third parties on account thereof; "chargeable income" means the aggregate amount of the income of any person from the sources specified in section 3 remaining after allowing the appropriate deductions and exemptions under this Ordinance; ''Commissioners"'' means the Commissioners of Income Tax appointed under section 42; "the Commonwealth" shall be deemed to include those territories and their dependencies which are pre- scribed; "Commonwealth income tax" means any income tax charged under any law in force in any part of the Commonwealth other than the United Kingdom; "Company" means any company incorporated or regis- tered under any law in force in the Colony or any company incorporated or registered outside the Colony; "Comptroller" means the Comptroller of Inland Revenue appointed under section 42 and includes any officer acting for or deputed by him; "double taxation relief"'' means any relief or credit given in respect of income tax charged in any other terri- tory; "person" includes a body of persons; "plant or machinery" excludes expenditure on loose plant, tools, containers, cases, china, glass, soft fur- nishings and similar objects of a short life or for which the cost of renewals is a deduction allowed in computing the profits; "prescribed" means prescribed by rules under this Ordinance; "section" means a section of this Ordinance; "tax" means the income tax imposed by this Ordinance; "trade" means any trade, manufacture, business, and any adventure or concern in the nature of trade, and shall include farming, market gardening, hus- bandry and the occupation of land for any commer- cial purpose; "year of assessment" means the period of twelve months commencing on the 1st day of January in each year.