B887 <=> B889 [BTG XLI The bokharian dervish, p. 888]

“Through these pipes, as I also afterwards learned, the air necessary for the breathing of the beings present during the experiments could flow in from outside, because this interior was then closed hermetically on all sides.

“The beings who were present during the experiments wore over their faces those masks which were on this strange apparatus.

“When we were all seated on the floor in the said section of the cave, the venerable Hadji-Asvatz-Troov said among other things that during the period of his investigations he and his friend the dervish Kerbalai-Azis-Nuaran had also occasion to study very thoroughly all the theories existing on the Earth about vibrations made at any time by serious terrestrial scientists.

“He said: ‘We studied the Assyrian theory of the great Malmanash, and the Arabian theory of the famous Selneh-eh-Avaz, and the Greek – of the philosopher Pythagoras – and of course all the Chinese theories.

“’And we made apparatuses exactly similar to those with which all these ancient sages made their experiments, and we even made an addition to one of their apparatuses, which is now the chief one for my experiments.

“’With this apparatus Pythagoras made his experiments, and it was then called a “monochord,” but now that I have altered it, I call it a “vibrosho.”’

“Having said this, he pressed something on the floor with one hand, and with the other he pointed to a very strangely shaped apparatus standing there and added that it was the same altered ‘monochord.’

“The apparatus he pointed to consisted of a two-meter board the whole front half of which was divided into sections called ‘frets,’ like the neck of the sound-producing instrument called ‘guitar,’ and on it was stretched only one string.