Electricity: municipal systems may be exempted, Puget Sound Power & Light Co. v. Seattle, 291 U.S. 619 (1934); that portion of electricity produced which is used for pumping water for irrigating lands may be exempted, Utah Power & Light Co. v. Pfost, 286 U.S. 165 (1932).

Insurance companies: license tax measured by gross receipts upon domestic life insurance companies from which fraternal societies having lodge organizations and insuring lives of members only are exempt, and similar foreign corporations are subject to a fixed and comparatively slight fee for the privilege of doing local business of the same kind. Northwestern Mutual L. Ins. Co. v. Wisconsin, 247 U.S. 132 (1918).

Oleomargarine: classified separately from butter. Magnano Co. v. Hamilton, 292 U.S. 40 (1934).

Peddlers: classified separately from other vendors. Caskey Baking Co. v. Virginia, 313 U.S. 117 (1941).

Public utilities: a gross receipts tax at a higher rate for railroads than for other public utilities, Ohio Tax Cases, 232 U.S. 576 (1914); a gasoline storage tax which places a heavier burden upon railroads than upon common carriers by bus, Nashville C. & St. L. Co. v. Wallace, 288 U.S. 249 (1933); a tax on railroads measured by gross earnings from local operations, as applied to a railroad which received a larger net income than others from the local activity of renting, and borrowing cars, Illinois Central R. Co. v. Minnesota, 309 U.S. 157 (1940); a gross receipts tax applicable only to public utilities, including carriers, the proceeds of which are used for relieving the unemployed, New York Rapid Transit Corp. v. New York, 303 U.S. 573 (1938).

Wine: exemption of wine from grapes grown in the State while in the hands of the producer. Cox v. Texas, 202 U.S. 446 (1906).

Laws imposing miscellaneous license fees have been upheld as follows:

Cigarette dealers: taxing retailers and not wholesalers. Cook v. Marshall County, 196 U.S. 261 (1905).

Commission merchants: requirements that dealers in farm products on commission procure a license, Payne v. Kansas, 248 U.S. 112 (1918).

Elevators and warehouses: license limited to certain elevators and warehouses on right-of-way of railroad, Cargill Co. v. Minnesota, 180 U.S. 452 (1901); a license tax applicable only to commercial warehouses where no other commercial warehousing facilities in township subject to tax, Independent Warehouse Inc. v. Scheele, 331 U.S. 70 (1947).