From the March 16, 1935, issue

LENINGRAD INSTITUTE CELEBRATES 50TH ANNIVERSARY

The cover illustration of the Science News Letter this week shows a test discharge of the great copper gaps in the high-voltage laboratory of the Electrotechnical Institute, Leningrad, U.S.S.R., which recently celebrated its 50th anniversary.

In the test, 1.2 million volt sparks are jumping.