The laws as to labor in mines are naturally more severe; although in some they are covered by the ordinary factory laws (Colorado, Florida, Iowa, Kansas, Kentucky, Louisiana, Michigan, Minnesota, North Dakota, Oregon, South Carolina, South Dakota, Tennessee, Vermont, Virginia, Wisconsin). Female labor is absolutely forbidden in mines or works underground in Alabama, Arkansas, Illinois, Indiana, Missouri, New York, North Carolina, Oklahoma, Pennsylvania, Utah, Washington, Wyoming, and West Virginia,--in short, in most of the States except Idaho, Kansas, Iowa, Kentucky, Virginia, Wyoming, where mines exist; and the limit of male labor is usually put at from fourteen. (Alabama, Arkansas, Idaho, Indiana, Missouri, Ohio,[1] South Dakota, Tennessee, Utah, Wyoming) to sixteen (Illinois, Missouri,[2] Montana, New York, Oklahoma, Pennsylvania, Washington); or twelve (North Carolina, South Carolina, West Virginia), even in States which have no such legislation as to factories. [Footnote 1: Fifteen during school year.] [Footnote 2: Of those who can read and write.] The laws as to elevators,[1] dangerous machinery,[2] or dangerous employment generally,[3] are even stricter, and as a rule apply to children of both sexes; the Massachusetts standard being, in the management of rapid elevators, the age of eighteen, in cleaning machinery in motion, fourteen, etc.; in other States, sixteen to eighteen.[4] The labor of all women in some States, and of girls or women under sixteen or eighteen in other States, is forbidden in occupations which require continual standing.[5] Females,[6] or minors,[7] or young children[8] are very generally forbidden from working or waiting in bar-rooms or restaurants where liquor is sold, and in a few States girls are prohibited from selling newspapers or acting as messengers.[9] The Northern States have a usual age limit for the employment of children in ordinary theatrical performances, and an absolute prohibition of such employment or of acrobatic, immoral, or mendicant employment. But in some States it appears there is only an age limit as to these.[10] [Footnote 1: Indiana, Massachusetts, New York, Rhode Island, Kansas, Oregon.] [Footnote 2: Connecticut, Iowa, Missouri, Oregon, Louisiana, New York.] [Footnote 3: Illinois, Kansas, Kentucky, Massachusetts, Michigan, Minnesota, Missouri, Montana, New Jersey, New York, Ohio, Oklahoma, Pennsylvania, Wisconsin.] [Footnote 4: Indiana, Iowa, Louisiana, New Jersey, New York, South Carolina.] [Footnote 5: Illinois (under sixteen), Michigan (all), Minnesota (sixteen), Missouri (all), New York (sixteen), Ohio (all), Oklahoma (sixteen), Wisconsin (sixteen), Colorado (all over sixteen).] [Footnote 6: Iowa, Louisiana, Michigan, Missouri, New Hampshire, New York, Vermont, Washington (except the wife of the proprietor or a member of the family).] [Footnote 7: Arizona, Connecticut, Georgia, Pennsylvania, Idaho, Maryland, Michigan, Missouri, New Hampshire, South Dakota, Vermont.]