Osty concluded that he was recording the passage of an ectoplasm like substance that was indicative of telekinetic movement. He wrote that the substance registered on sound recording equipment when it moved, and that it could pass through objects put in place to impede it.
Osty's observations suggest the presence of a substance resembling ectoplasm, which he interpreted as evidence of telekinetic activity. This substance was detected by sound recording equipment and demonstrated the ability to pass through obstacles.