five o’clock
But fancies such as these were not the sole possessors of my brain . Horrors of a nature most stern and most appalling would too frequently obtrude themselves upon my mind , and shake the innermost depths of my soul with the bare supposition of their possibility . Yet I would not suffer my thoughts for any length of time to dwell upon these latter speculations , rightly judging the real and palpable dangers of the voyage sufficient for my undivided attention . `` At five o'clock , p.m. , being engaged in regenerating the atmosphere within the chamber , I took that opportunity of observing the cat and kittens through the valve . The cat herself appeared to suffer again very much , and I had no hesitation in attributing her uneasiness chiefly to a difficulty in breathing ; but my experiment with the kittens had resulted very strangely . I had expected , of course , to see them betray a sense of pain , although in a less degree than their mother , and this would have been sufficient to confirm my opinion concerning the habitual endurance of atmospheric pressure . But I was not prepared to find them , upon close examination , evidently enjoying a high degree of health , breathing with the greatest ease and perfect regularity , and evincing not the slightest sign of any uneasiness whatever .