After the first tests I assigned Willi Thiel, one of the very competent engineers, to take care of the equipment on his own and continuously perform observations. Some weeks later I again travelled to the Rügen island for experiments near Göhren. On the last day of the experiments, just a few hours before leaving back to Berlin, I visited the Bakenberg again. The sky was very dull, the night very dark. On the way to the Bakenberg W. Thiel reported about a "strange equipment perturbation", which he had observed on the previous day at approximately the same time, but of which he had not been able to find the cause; however, it had become less after about two hours despite him not fixing it, and in the end had disappeared completely.