In considering the authority for the division of the sacred cubit into 25 inches, we have, first, the architectural fact that the Queen's chamber, containing the visible expression of that cubit, stands in or upon the 25th course of masonry, comprising the whole Pyramid. And here, though not strictly bearing on the case, may be mentioned a connection between the lengths of the two passages (the first ascending, and the horizontal passages) leading to that chamber, remarkable when expressed in inches, of which 25 make a cubit.