35. Notice respecting some Errors common to many Tables of Logarithms.—Mem. Astron. Soc. 4to. 1827. Vol. iii. p. 65.
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36. Essay on the general Principles which regulate the Application of Machinery.—Ency. Metrop. 4to. 1829.
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42. On the Proportion of Letters occurring in Various Languages, in a letter to M. Quételet.—Correspondence Mathematique et Physique. Tom. vi. p. 136.
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