interstate pipe line company to local industrial consumers; and that Illinois was not precluded by the Commodity Exchange Act[1013] from imposing upon grain exchanges doing business within her borders regulations not at variance with the provisions of the act or with regulations promulgated under it by the Secretary of Agriculture. Nor, it was held by a bare majority of the Court in 1949, did the Motor Carrier Act of 1935, as amended in 1942,[1014] prevent California from prohibiting the sale or arrangement of any transportation over its public highways if the transporting carrier has no permit from the Interstate Commerce Commission.[1015] The opposed opinions line up most of the cases on either side of the question. RECENT CASES NULLIFYING STATE ACTION On the other side of the ledger appear the following cases, decided contemporaneously with those just reviewed: one in 1942 in which it was held that a gas company engaged in the business of piping natural gas from without the State of Illinois and selling it wholesale to distributors in that State was subject to the jurisdiction of the Federal Power Commission under the Natural Gas Act,[1016] and hence could not be required by the Illinois Commerce Commission to extend its facilities in the absence of a certificate of convenience from the Federal Power Commission;[1017] one, in the same year, in which it was held, by a sharply divided Court, that federal regulation of the production of renovated butter under the Internal Revenue Code[1018] prevented the State of Alabama from inspecting, seizing and detaining stock butter from which such butter was made, some of it being intended for interstate commerce;[1019] one in 1947 holding that the United States Warehouse Act, as amended,[1020] must be construed as superseding State authority to regulate licenses thereunder, and hence overruled the stricter requirements of Illinois law dealing with such subject as rate discrimination, the dual position of grain warehousemen storing their own grain, the mixing of inferior grain owned by the warehousemen with superior grain of other users of the facility, delay in loading grain, the sacrificing or rebating of storage charges, retraining desirable transit tonnage, utilizing preferred storage space, maintenance of unsafe and inadequate grain elevators, inadequate and ineffectual warehouse service, the obtaining of a license, the abandonment of warehousing service, and the rendition of warehousing service without filing and publishing rate schedules;[1021] one decided the same year in which it was held that the authority of the Federal Power Commission under the Natural Gas Act[1022] extended to and superseded State regulatory power over sales made within a State by a natural gas producing company to pipe line companies which transported the purchased gas to markets in other States;[1023] one in 1948, in which a sharply divided Court held that Michigan law governing the rights of dissenting