a. (UN-1 7 b.)

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1802–12.  Bentham, Ration. Judic. Evid. (1827), II. 497. While the witnesses are alive and produceable,… when they are dead, or otherwise unproduceable.

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1834.  De Quincey, Autob. Sk., Wks. 1854, II. 313. Everybody agrees in our days to think this accomplishment … unproduceable, unless existing in an exquisite state of culture.

3