Arthur Goldberg

“ I fully agree with the Court that ' (s) ince the purpose of delineating a line of commerce is to provide an adequate basis for measuring the effects of a given acquisition, its contours must, as nearly as possible, conform to competitive reality.' Ante, at p. 457. I also agree that 'on the evidence thus far revealed by this record,' there has been a prima facie showing 'that the interindustry competition between glass and metal containers * * * (warrants) treating as a relevant product market the combined glass and metal container industries and all end uses for which they compete.' Ibid. ”