Both these difficulties were overcome in a later experiment (Reasenberg et al.
On a later experiment, Stratton wore the glasses for eight whole days.
They produced either negative results or false positives, which were not confirmed by later experiments.
They would also lay the foundation for his later experiments in architecture and exhibition design.
In the 1950s he returned to the subject and formulated this later experiment, which was finally published in 1982.
He was always on the lookout for such triggers in his later experiments.
Similar results have been obtained in later experiments.
Some later experiments had negative results when these clues were eliminated.
More may have been the subject of later experiments.
Even in his later experiments, his roots were always audible.