Letter The author thanks for prints and digests with the addressee's articles. He answers to the addressee's questions from the letter of 21.10.1985. He sends prints of his works and materials of Conference on Logic and Methodology of Science. Date: 15.11.1985 Original document language: Russian Authors: Mark Semyonovich Burgin Persons: Vladimir E. Itkin Addressee: Andrei Petrovich Ershov