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AGE. The time when the law allows persons to do acts which, for want of years, they were prohibited from doing before. See Coop. Justin. 446.
     2. For males, before they arrive at fourteen years they are said not to be of discretion; at that age they may consent to marriage and choose a guardian. Twenty-one years is full age for all private purposes, and the may then exercise their rights as citizens by voting for public officers; and are eligible to all offices, unless otherwise provided for in the constitution. At 25, a man may be elected a representative in Congress; at 30, a senator; and at 35, he may be chosen president of the United States. He is liable to serve in the militia from 18 to 45. inclusive, unless exempted for some particular reason.
     3. As to females, at 12, they arrive at years of discretion and may consent to marriage; at 14, they may choose a guardian; and 21, as in males, is fun Age, when they may exercise all the rights which belong to their sex.
     4. In England no one can be chosen member of parliament till he has attained 21 years; nor be ordained a priest under the age of 24; nor made a bishop till he has completed his 30th year. The age of serving in the militia is from 16 to 45 years.
     5. By the laws of France many provisions are made in respect to age, among which are the following. To be a member of the legislative body, the person must have attained 40 years; 25, to be a judge of a tribunal de remiere instance; 27, to be its president, or to be judge or clerk of a court royale ; 30, to be its president or procurer general; 25, to be a justice of the peace; 30, to be judge of a tribunal of commerce, and 35, to be its president; 25, to be a notary public; 21, to be a testamentary witness; 30, to be a juror. At 16, a minor may devise one half of his, property as if he were a major. A male cannot contract marriage till after the 18th year, nor a female before full 15 years. At 21, both males and females are capable to perform all the act's of civil life. Toull. Dr. Civ. Fr. Liv. 1, Intr. n. 188.
     6. In the civil law, the age of a man was divided as follows: namely, the infancy of males extended to the full accomplishment of the 14th year; at 14, he entered the age of puberty, and was said to have acquired full puberty at 18 years accomplished, and was major on completing his 25th year. A female was an infant til 7 years; at 12, she entered puberty, and acquired full puberty at 14; she became of fall age on completing her 25th year. Lecons Elem. du Dr. Civ. Rom. 22.
     See Com. Dig. Baron and Feme, B 5, Dower, A, 3, Enfant, C 9, 10, 11, D 3, Pleader, 2 G 3, 2 W 22, 2 Y 8; Bac. Ab. Infancy and Age; 2 Vin. Ab. 131; Constitution of the United States; Domat. Lois Civ. tome 1, p. 10; Merlin, Repert. de Jurisp. mot Age; Ayl. Pand. 62; 1 Coke Inst. 78; 1 Bl. Com. 463. See Witness.

A Law Dictionary, Adapted to the Constitution and Laws of the United States. By John Bouvier. Published 1856.
References in periodicals archive ?
The same result was verified for the no designation of images (ND) and the correct naming of images (DUW), that is, GE had a similar performance, without a statistically significant difference compared to the CG1, paired by the mental age; however, it had a statistically significant inferior performance when compared to the CG2, group paired by chronological age.
Although mental age seems a straightforward way to apply the fourteen-year-old rule today, the approach faces several challenges.
Anyway, this mental age business is something the lawyers in Governor Bush's trigger-happy Texas only seem to be getting around to now.
Defence for Evans urged Judge Hickey to consider youth sentencing guidelines due to Evans mental age and the activity happened in the context of a relationship.
The court heard how Bundy, since his release from prison, had ensured he did not come into contact with children but it was claimed that in drink he sexually assaulted a vulnerable young woman aged 19, who had the mental age of a child aged between 12 and 14, on two occasions.
To keep Mrs Newman from wandering at night Dr Kalyani suggested her son Paul, 41, who has the mental age of a nine-year-old, lock the door.
Leighanne Arkley, who is 14 but is said to have a mental age of seven, left her class at Windle-stone School, near Newton Ayc-liffe, County Durham, at 1.45pm on Tuesday.
Colin McNab, defending, said McComb had learning difficulties that meant that at age 15 she only had a mental age of nine.
Police said Michael, who has a mental age of an 11-year-old, was extremely vulnerable.
Miss Ferris, from Aston, has always maintained her innocence, but was judged mentally unfit to take part in her trial at Birmingham Crown Court in June 2000 after being deemed to have a mental age of six.
Julie Ferris, 31, from Aston,Birmingham, has always protested her innocence but was refused the chance to defend herself after a court ruled she had the mental age of six.
Evans, who had the mental age of a child, had been living at 10 Rillington Place in London, next to John Reginald Christie who was later discovered to be a serial killer and sexual psychopath.