Alberta and Southern Gas Co. Ltd. v. The Queen, 76 DTC 6362, [1976] CTC 639 (FCTD), aff'd 77 DTC 5244 [1977] CTC 388 (FCA), aff'd 78 DTC 6566, [1978] CTC 780, [1979] 1 SCR 36 -- text
Cattanach, J:—These are appeals by the plaintiff from assessments to income tax by the Minister of National Revenue for the plaintiff’s 1972 and 1973 taxation years whereby the Minister disallowed the plaintiff's claim for a deduction of Canadian exploration