Acoustics conference in Moscow

In the spring of this year, a number of American acousticians, the author included, received invitations from the Planning Commission of the Fourth All‐Union Conference on Acoustics to attend a May meeting in Moscow and deliver a paper on an appropriate topic. The opportunity of seeing Soviet science at first hand was too good to be missed, and, having made all the usual arrangements, I left New York on May 23, flying via Copenhagen and Stockholm.