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1654 W. Charleton Physiologia Epicuro-Gassendo-Charltoniana vi. 223 A Quadruplicate weight produceth the same Effect, being appended to the whole of the sonorous chord, as a simple weight doth in the half.

1656 tr. T. Hobbes Elements Philos. iii. xvi. 175 The Lengths transmitted shall be to the Times in which they are transmitted, in proportion quadruplicate, quintuplicate [etc.].

1674 J. Wallis Let. 24 Mar. in H. Oldenburg Corr. (1975) X. 535 By Paraboloeids we mean such curves, whose Ordinates compared to their Diameters, are in proportion Duplicate, Triplicate, Quadruplicate, [etc.].

1709 V. Mandey Mech. Powers 179 By the doubling of the rope, that the slowness of the weight's descent is doubled to that it would have by a single rope; and it might, if need be, be quadruplicated.

1794 G. Adams Lect. Nat. & Exper. Philos. III. xxxi. 309 The efforts tending to destroy the adhesion of beams from their gravity only, increase in the quadruplicate ratio of their lengths.

1814 J. Playfair Outl. Nat. Philos. II. i. ix. 169 The same [probability] is increased in a quadruplicate ratio, from considering the phenomena of all these four superior planets.

1890 Polit. Sci. Q. 5 645 We should be forced to the conclusion that our property tax always involves a duplicate, triplicate or quadruplicate taxation in so far as state, county, town and village levy different rates on the same property.

1945 Amer. Notes & Queries July 60 There is one other ‘quadruplicate amputee’ in this war, according to the Army Medical Corps. He is an Army pilot who from severe freezing lost parts of all four limbs when his plane crashed in New England.

1990 Internat. Immunol. 2 1023/1 The results were expressed as the mean of quadruplicate or triplicate samples.