\brief{Rudolf Carnap an Bertrand Russell, 15. Oktober 1926}{Oktober 1926} %Oct. 15 \textsuperscript{th}, 1926. \anrede{Dear Mr. Russell,} \haupttext{By your kind help the ``Principia Mathematica''\IW{\principiamathematica} vol. I-III are in my hands. I am very glad and thankful to have them. Now the new edition of vol. I is very expensive. I have seen, that only few parts have been changed. Is there perhaps a possibility for getting by your intervention only these new parts separated from the Cambridge University Press\II{\cambridgepress} for a lower prise than the 42 s.? With many thanks for your kindness,} \grussformel{Yours sincerely,\\{} [Rudolf Carnap]} \ebericht{Brief, msl. Dsl., 1 Seite, \href{https://doi.org/10.48666/870957}{RC 102-68-28}; Briefkopf: msl. \original{Oct.\,15\textsuperscript{th}, 1926}.}