What Eisenmann claimed
Books and publicity attributed extensive vocabularies and unusual understanding to the dogs. A 1964 report made a numerical claim for Toro, and a 1965 advertisement promoted a multi-language vocabulary. Those statements tell us how the work was presented.
What the material can tell us
The books and publicity do not describe controlled tests or separate a spoken cue from routine, gesture, timing and training history. The vocabulary claims are best read as part of Eisenmann’s public training story, rather than a scientific measure of grammar or cognition.
Why they matter
These claims were central to Eisenmann’s public identity and to what audiences believed they were seeing.