Conscious that the human organism , normally capable of sustaining an atmospheric pressure of 19 tons , when elevated to a considerable altitude in the terrestrial atmosphere suffered with arithmetical progression of intensity , according as the line of demarcation between troposphere and stratosphere was approximated , from nasal hemorrhage , impeded respiration and vertigo , when proposing this problem for solution he had conjectured as a working hypothesis which could not be proved impossible that a more adaptable and differently anatomically constructed race of beings might subsist otherwise under martian , mercurial , veneral , jovian , saturnian , neptunian or uranian sufficient and equivalent conditions , though an apogean humanity of beings created in varying forms with finite differences resulting similar to the whole and to one another would probably there as here remain inalterably and inalienably attached to vanities , to vanities of vanities and all that is vanity 人体组织通常能够抗得住十九吨的气压169 ，可是一旦在地球的大气层里上升到相当的高度，越是接近对流层与平流层的境界线，鼻孔出血吸呼困难以及眩晕，随着算术级数就越发严重起来。他晓得这一点，寻求解答时就设想出这样一个难以证明是不可能的行之有效的假定：倘若换个更富于适应性，解剖学上的构造也有所不同的种族，说不定就能在火星水星金星木星土星海王星或天王星那充足而相同的条件下生存下来。然而那个远地点170的人类种族，尽管在构造方面与地球上的人类有着一定限度的不同之处，整个来说彼此却有着相似的种种形态。
