His chief contention was that, because he had taken home with him in deserting the object of the expedition a hypsometer, I could not have measured the high altitudes claimed.
"My Attainment of the Pole"
Frederick A. Cook
The hypsometer was not at that time an important instrument.
"My Attainment of the Pole"
Frederick A. Cook
A hypsometer, or instrument for ascertaining the heights of the Lunar mountains by the barometric pressure under which water boils, a sextant to measure the altitude of the Sun, a theodolite for taking horizontal or vertical angles, telescopes, of indispensable necessity when the travellers should approach the Moon,-all these instruments, carefully examined, were found to be still in perfect working order, notwithstanding the violence of the terrible shock at the start.
"All Around the Moon"
Jules Verne