Show world Is thin shell shelf it Is wholesome for or proud mon man to louk upward on a bright day at some pretty cirrus cloud to consider that it t Is composed of lee ice spI cules that it floats in arctic cold that it signalizes to us ua what hothouse creatures we are it if the root roof of air were removed we should all be frozen to death in a moment just above the root Is deadly cold and just below the crust of 0 earth Is deadly heat only within the thin shell shelf that separates these two regions can the human race strut about and congratulate itself on its great powers rickshaw Ilens liaw ward in the whirlpools of the Wc weather ather in harpers magazine |