March - by now, x-ray photography had been pursued by several authors in the whole of Bohemian Kingdom. At a meeting of Czech Mathematicians and Physicists Unity docent Vladimír Novák (1869-1934) read a paper O fotografii paprsky Roentgenovými (About photography with Roentgen's rays). According to the literature, a photo amateur Jan Kučka from Velké Meziříčí also made x-ray pictures with an apparatus of his own construction. At the same time in Prague, according to the literature, Puluj's colleague Ernst Mach made stereo x-ray pictures; they were probably the first stereo x-ray pictures in the world.