[Footnote 2: In public work, that is, work done for the State, or any county or municipality or for contractors therefor, the eight-hour day is prescribed (California, Colorado, Delaware, District of Columbia, Hawaii, Idaho, Indiana, Kansas, Maryland, Massachusetts, Minnesota, Montana, Nebraska, Nevada, New York, Oklahoma, Oregon, Pennsylvania, Porto Rico, Utah, Washington, West Virginia, Wisconsin, Wyoming, and the United States). But the provisions for overtime and compensation for overtime differ considerably.] The labor of women (in mechanical trades, factories and laundries in Illinois, or in mercantile, hotel, telegraph, telephone, etc., as well, in Oregon) for more than a limit of ten hours per day in Illinois, or nine in Oregon, is prohibited and made a misdemeanor; and both these statutes have been held constitutional. But in many other States the hours of labor in factories or manufacturing establishments, even of adult women, are now regulated; while the labor of children, as we shall find, is regulated in nearly all. Thus, Connecticut, Illinois, Maine, Maryland, Massachusetts, Michigan, Minnesota, Nebraska, New Hampshire, New York, North Dakota, Oklahoma, Oregon, Pennsylvania, Rhode Island, South Dakota, Tennessee, Virginia, and Washington have a ten-hour day in all manufacturing or mechanical employments for women of any age, which in Connecticut, Massachusetts, Michigan, Minnesota, Missouri, Nebraska, Oregon, Pennsylvania, and Washington extends to mercantile avocations also, in Louisiana only to specified dangerous trades; in Wisconsin, eight hours; and in Connecticut, Maine, Minnesota, New Hampshire there may not be more than fifty-eight hours a week, or in Massachusetts and Rhode Island, fifty-six, and in Michigan and Missouri, fifty-four. Arizona has an eight-hour day in laundries. And these laws are extended to specified occupations, viz., in Connecticut to manufacturing, mechanical, and mercantile; in Illinois, mechanical, factory, or laundry; in Louisiana, unhealthful or dangerous occupations except agricultural or domestic; in Maine, mechanical and manufacturing except of perishable products; in Maryland, special kinds of manufactories; in Massachusetts, manufacturing, mechanical, mercantile, and restaurants; in Michigan, Minnesota, and Missouri, manufacturing, mechanical, and mercantile or laundries; in Nebraska, manufacturing, mercantile, hotel, or restaurant; in New Hampshire, New York,[1] North Dakota, Oklahoma, Rhode Island, manufacturing and mechanical; in Tennessee and Virginia, manufacturing only; in Washington and Oregon manufacturing, mechanical, mercantile, laundry, hotel, or restaurant, and in Wisconsin, mechanical or manufacturing. Georgia and South Carolina regulate the labor of women as they do of adult men[2] in factories. Such laws of course would not be unconstitutional or, if so, not for the reason of sex discrimination. [Footnote 1: Possibly unconstitutional. See above.] [Footnote 2: See above.]