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EVIDENCE, EXTRINSIC. External evidence, or that which is not contained in the body of an agreement, contract, and the like.
     2. It is a general rule that extrinsic evidence cannot be admitted to contradict, explain, vary or change the terms of a contract or of a will, except in a latent ambiguity, or to rebut a resulting trust. 14 John. 1; 1 Day, R. 8; 6 Conn. 270.

A Law Dictionary, Adapted to the Constitution and Laws of the United States. By John Bouvier. Published 1856.
References in periodicals archive ?
We can also make use of the Watts (2006) results to deduce that the mean extrinsic incubation period [[tau].sub.e] is somewhere between 7 days to 12 days or [[tau].sub.e] = 9.5 days [[phi].sub.2] = 0.20, [a.sub.2] = 51.
Virus titers will also vary according to the duration of the extrinsic incubation period. One limitation of our study is that because we did not know the age structure of the mosquito population, we could not control this variable.
Carter was a quarantine officer and a field epidemiologist, best known for his discovery in 1898 of the extrinsic incubation period of yellow fever.
He never considered the possibility of an extrinsic incubation period that would require time for the agent of yellow fever to incubate within mosquitoes.
Generally, the extrinsic incubation period of P.falciparum is inversely correlated with temperature.
Even if infected mosquitoes gain entry to such buildings, the artificially dry atmosphere lowers their survival rate, and the cool temperature extends the extrinsic incubation period, reducing the likelihood of transmission.