gives the details of events in Moscow and asks for explanations of discourteous behavoir on the part of the Foreign Relations Office of the USSR AS

on behalf of the Foreign Affairs Department of the USSR AS, he deeply regrets about the unhappy curcumstances and gives some explanations of all happened

wants to come but has to seek for financial support

has learned about the symposium from his friend Vuillemin, which excited him very much; asks if it is possible to take part though his works relate applied probability

excuses for not including his name in the first list of potential participants and gives explanations