"CAUCHY, AUGUSTIN + I.J. BIENAYMÉ - THE CAUCHY DISTRIBUTION AND THE PROOF OF CLT.
Reference : 48829
(1853)
(Paris, Bachelier),1853. 4to. No wrappers. In: ""Comptes Rendus Hebdomadaires des Séances de L'Academie des Sciences"", Tome XXXVI, No. 26 and tome XXXVII. No. 3,4,6,7,9,10 (entire issues offered). The papers: pp. 1114-1122, 64-69, 100-109, 198-206, 264-272, 326-334, 381-385. Some scattered brownspots.
First printing of these importent papers in probability theory, introducing the Cauchy-Distribution and proving the Central Limit Theorem (CLT).""In the course of these investigations Cauchy proved the central limit theorem by means of Fourier transforms in a much more general setting than Laplace had done."" (DSB).