Spring – Jindřich Eckert made a set of x-ray pictures at Ivan Puluj’s, which he presented in a album with 16 pages called Experiments by the cathode light. The set is the most important work related to x-rays in the Czech lands, where the original scientific experiment had been elevated to an artistic attempt by using the x-rays. At the same time it is the largest known signed set of x-ray pictures by a Czech author.