y Teleg. & Cable Co. _v._ Little Rock, 250 U.S. 94, 99 (1919).

[754] Western U. Teleg. Co. _v._ New Hope, 187 U.S. 419, 425 (1903);
Pure Oil Co. _v._ Minnesota, 248 U.S. 158, 162 (1918).

[755] New Mexico ex rel. McLean _v._ Denver & R.G.R. Co., 203 U.S. 38,
55 (1906). _Cf._ Red "C" Oil Mfg. Co. _v._ Board of Agriculture, 222
U.S. 380, 393 (1912); Western U. Teleg. Co. _v._ New Hope, 187 U.S. 419
(1903).

[756] Brimmer _v._ Rebman, 138 U.S. 78, 83 (1891); Postal Teleg. & Cable
Co. _v._ Taylor, 192 U.S. 64 (1904); Pure Oil Co. _v._ Minnesota, 248
U.S. 158, 162 (1918).

[757] Atlantic & P. Teleg. Co. _v._ Philadelphia, 190 U.S. 160, 164
(1903); Postal Teleg. Cable Co. _v._ Taylor, 192 U.S. 64, 69 (1904);
Foote & Co. _v._ Stanley, 232 U.S. 494, 503, 504 (1914).

[758] Foote & Co. _v._ Stanley, 232 U.S. 494, 505 (1914); Lugo _v._
Suazo, 59 F. (2d) 386 (1932).

[759] Western U. Teleg. Co. _v._ New Hope, 187 U.S. 419, 425 (1903);
Foote & Co. _v._ Stanley, 232 U.S. 494, 507 (1914).

[760] Postal Teleg. Cable Co. _v._ New Hope, 192 U.S. 55 (1904); Foote &
Co. _v._ Stanley, 232 U.S. 494, 508 (1914).

[761] 10 Stat. 112. Sustained in Pennsylvania _v._ Wheeling & Belmont
Bridge Co., 18 How. 421 (1856).

[762] Pennsylvania _v._ Wheeling & Belmont Bridge Co., 13 How. 518
(1852).

[763] Transportation Co. _v._ Parkersburg, 107 U.S. 691, 701 (1883).

[764] 322 U.S. 533 (1944).

[765] 59 Stat. 33 (1945).

[766] 328 U.S. 408 (1946).

[767] Ibid. 429-430, 434-435.

[768] _See_ pp. 163-172.

[769] 9 Wheat. 1 (1824).

[770] Ibid. 203.

[771] 12 Wheat. 419 (1827).

[772] Ibid. 443-444.

[773] _Cf._ 12 Wheat. at 439-440.

[774] 11 Pet. 102 (1837).

[775] Smith _v._ Turner (Passenger Cases), 7 How. 283 (1849).

[776] Henderson _v._ New York, 92 U.S. 259 (1876).

[777] Ibid. 272.

[778] Chy Lung _v._ Freeman, 92 U.S. 275 (1876).

[779] Compagnie Francaise de Navigation _v._ Bd. of Health, 186 U.S.
380, 398, (1902). _See also_ Morgan's L. & T.R.S.S. Co. _v._ Bd. of
Health, 118 U.S. 455 (1886); Louisiana _v._ Texas, 176 U.S. 1, 21
(1900).

[780] 211 U.S. 31, 36-37 (1908).

[781] As to concessions by the Court to the practical necessities of
enforcement, _see also_ Bayside Fish Flour Co. _v._ Gentry, 297 U.S. 422
(1936); and Whitfield _v._ Ohio, 297 U.S. 431 (1936).

[782] 325 U.S. 761, 766-767.

[783] Ibid. 767; citing: Minnesota Rate Cases, 230 U.S. 352, 399, 400
(1913); South Carolina Highway Dept. _v