S. 1842. To amend the Clayton Act to prohibit vertically integrated companies from engaging in discriminatory practices against independent producers and distributors. S. 1843. To require certain companies engaged in dual distribution to disclose separate annual operating data on each of their establishments which compete with independent customers of such companies in the sale and industrial use of their products and for other purposes. S. 1844. To amend the Clayton Act to prohibit vertically integrated companies from engaging in anticompetitive pricing practices